2017-10-17: fix some example headers

fix some example headers

diff --git a/examples/advent-2016-day-7.w b/examples/advent-2016-day-7.w
--- a/examples/advent-2016-day-7.w
+++ b/examples/advent-2016-day-7.w
@@ -1,5 +1,6 @@
 #!/usr/bin/env sh
 # -*- wisp -*-
+guile -L $(dirname $(dirname $(realpath "$0"))) -c '(import (language wisp spec))'
 exec guile -L $(dirname $(dirname $(realpath "$0"))) --language=wisp -s "$0"
 ; !#
 
diff --git a/examples/argparse.w b/examples/argparse.w
--- a/examples/argparse.w
+++ b/examples/argparse.w
@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 # -*- wisp -*-
-guile -L $(dirname $(dirname $(realpath "$0"))) -c '(import (wisp-scheme) (language wisp spec))'
+guile -L $(dirname $(dirname $(realpath "$0"))) -c '(import (language wisp spec))'
 exec guile -L $(dirname $(dirname $(realpath "$0"))) --language=wisp -e '(@@ (examples argparse) main)' -s "$0" "$@"
 ; !#
 
diff --git a/examples/benchmark.w b/examples/benchmark.w
--- a/examples/benchmark.w
+++ b/examples/benchmark.w
@@ -1,5 +1,6 @@
 #!/usr/bin/env sh
 # -*- wisp -*-
+guile -L $(dirname $(dirname $(realpath "$0"))) -c '(import (language wisp spec))'
 exec guile -L $(dirname $(dirname $(realpath "$0"))) --language=wisp -e '(@@ (examples benchmark) main)' -l $(dirname $(realpath "$0"))/cholesky.w -l $(dirname $(realpath "$0"))/ensemble-estimation.w -s "$0" "$@"
 ; !#
 
diff --git a/examples/cartesian-sets.w b/examples/cartesian-sets.w
--- a/examples/cartesian-sets.w
+++ b/examples/cartesian-sets.w
@@ -1,5 +1,6 @@
 #!/usr/bin/env sh
 # -*- wisp -*-
+guile -L $(dirname $(dirname $(realpath "$0"))) -c '(import (language wisp spec))'
 exec guile -L $(dirname $(dirname $(realpath "$0"))) --language=wisp -e '(@@ (examples cartesian-sets) main)' -s "$0" "$@"
 ; !#
 ;; Implementation of the cartesian product over a list of lists, building on http://stackoverflow.com/a/20591545/7666
diff --git a/examples/cholesky.w b/examples/cholesky.w
--- a/examples/cholesky.w
+++ b/examples/cholesky.w
@@ -1,5 +1,6 @@
 #!/usr/bin/env sh
 # -*- wisp -*-
+guile -L $(dirname $(dirname $(realpath "$0"))) -c '(import (language wisp spec))'
 exec guile -L $(dirname $(dirname $(realpath "$0"))) --language=wisp -e '(@@ (examples cholesky) main)' -s "$0" "$@"
 ; !#
 
diff --git a/examples/cli.w b/examples/cli.w
--- a/examples/cli.w
+++ b/examples/cli.w
@@ -1,5 +1,6 @@
 #!/usr/bin/env sh
 # -*- wisp -*-
+guile -L $(dirname $(dirname $(realpath "$0"))) -c '(import (language wisp spec))'
 exec guile -L $(dirname $(dirname $(realpath "$0"))) --language=wisp -e '(@@ (examples cli) main)' -s "$0" "$@"
 ; !#
 
diff --git a/examples/closure.w b/examples/closure.w
--- a/examples/closure.w
+++ b/examples/closure.w
@@ -1,5 +1,6 @@
 #!/usr/bin/env sh
 # -*- wisp -*-
+guile -L $(dirname $(dirname $(realpath "$0"))) -c '(import (language wisp spec))'
 exec guile -L $(dirname $(dirname $(realpath "$0"))) --language=wisp -e '(@@ (examples closure) main)' -s "$0" "$@"
 ; !#
 
diff --git a/examples/commandline-handling.w b/examples/commandline-handling.w
--- a/examples/commandline-handling.w
+++ b/examples/commandline-handling.w
@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 # -*- wisp -*-
-guile-2.0 -L $(dirname $(dirname $(realpath "$0"))) -c '(import (wisp-scheme) (language wisp spec))'
+guile-2.0 -L $(dirname $(dirname $(realpath "$0"))) -c '(import (language wisp spec))'
 exec guile-2.0 -L $(dirname $(dirname $(realpath "$0"))) --language=wisp -e '(examples commandline-handling)' -s "$0" "$@"
 ; !#
 
diff --git a/examples/comment-server.w b/examples/comment-server.w
--- a/examples/comment-server.w
+++ b/examples/comment-server.w
@@ -1,4 +1,6 @@
 #!./wisp-multiline.sh
+guile -L $(dirname $(dirname $(realpath "$0"))) -c '(import (language wisp spec))'
+
 ; !#
 
 use-modules 
diff --git a/examples/d20world.w b/examples/d20world.w
--- a/examples/d20world.w
+++ b/examples/d20world.w
@@ -1,5 +1,6 @@
 #!/usr/bin/env sh
 # -*- wisp -*-
+guile -L $(dirname $(dirname $(realpath "$0"))) -c '(import (language wisp spec))'
 exec guile -L $(dirname $(dirname $(realpath "$0"))) --language=wisp -e '(@@ (examples d20world) main)' -s "$0" "$@"
 ; !#
 
diff --git a/examples/d6.w b/examples/d6.w
--- a/examples/d6.w
+++ b/examples/d6.w
@@ -1,5 +1,6 @@
 #!/usr/bin/env sh
 # -*- wisp -*-
+guile -L $(dirname $(dirname $(realpath "$0"))) -c '(import (language wisp spec))'
 exec guile -L $(dirname $(dirname $(realpath "$0"))) --language=wisp -e '(@@ (examples d6) main)' -s "$0" "$@"
 ; !#
 
diff --git a/examples/duel.w b/examples/duel.w
--- a/examples/duel.w
+++ b/examples/duel.w
@@ -2,7 +2,7 @@
 # -*- wisp -*-
 D="$(dirname $(realpath "$0"))"
 W="$(dirname $(dirname $(realpath "$0")))"
-guile -L "$W" -c '(import (wisp-scheme) (language wisp spec))'
+guile -L "$W" -c '(import (language wisp spec))'
 exec guile -L "$W" --language=wisp -l "$D/enter-three-witches.w" -s "$0" "$@"
 ; !#
 
diff --git a/examples/ensemble-estimation.w b/examples/ensemble-estimation.w
--- a/examples/ensemble-estimation.w
+++ b/examples/ensemble-estimation.w
@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 # -*- wisp -*-
-guile -L $(dirname $(dirname $(realpath "$0"))) -c '(import (wisp-scheme) (language wisp spec))'
+guile -L $(dirname $(dirname $(realpath "$0"))) -c '(import (language wisp spec))'
 exec guile -L $(dirname $(dirname $(realpath "$0"))) --language=wisp -e '(@@ (examples ensemble-estimation) main)' -l $(dirname $(realpath "$0"))/cholesky.w -s "$0" "$@"
 ; !#
 
diff --git a/examples/enter-three-witches.w b/examples/enter-three-witches.w
--- a/examples/enter-three-witches.w
+++ b/examples/enter-three-witches.w
@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 # -*- wisp -*-
-guile -L $(dirname $(dirname $(realpath "$0"))) -c '(import (wisp-scheme) (language wisp spec))'
+guile -L $(dirname $(dirname $(realpath "$0"))) -c '(import (language wisp spec))'
 exec guile -L $(dirname $(dirname $(realpath "$0"))) --language=wisp -e '(@@ (examples enter-three-witches) main)' -s "$0" "$@"
 ; !#
 
diff --git a/examples/evaluate-r7rs-benchmark.w b/examples/evaluate-r7rs-benchmark.w
--- a/examples/evaluate-r7rs-benchmark.w
+++ b/examples/evaluate-r7rs-benchmark.w
@@ -1,5 +1,6 @@
 #!/bin/sh
 # -*- wisp -*-
+guile -L $(dirname $(dirname $(realpath "$0"))) -c '(import (language wisp spec))'
 exec guile -L ~/wisp --language=wisp -s $0 "$@"
 !#
 
diff --git a/examples/evolve.w b/examples/evolve.w
--- a/examples/evolve.w
+++ b/examples/evolve.w
@@ -1,5 +1,6 @@
 #!/usr/bin/env sh
 # -*- wisp -*-
+guile -L $(dirname $(dirname $(realpath "$0"))) -c '(import (language wisp spec))'
 exec guile -L $(dirname $(dirname $(realpath "$0"))) --language=wisp -e '(@@ (examples evolve) main)' -s "$0" "$@"
 ; !#
 
diff --git a/examples/factorial.w b/examples/factorial.w
--- a/examples/factorial.w
+++ b/examples/factorial.w
@@ -1,4 +1,5 @@
 #!/usr/bin/env sh
+guile -L $(dirname $(dirname $(realpath "$0"))) -c '(import (language wisp spec))'
 exec guile -L $(dirname $(dirname $(realpath "$0"))) --language=wisp -e '(@@ (examples factorial) main)' -s "$0" "$@"
 ; !#