2013-04-11: Fix multiline input.

Fix multiline input.

diff --git a/Readme.txt b/Readme.txt
--- a/Readme.txt
+++ b/Readme.txt
@@ -32,6 +32,7 @@ That converts the infile to scheme and e
 
 Or with bash, extend this to a multiline input:
 
-    while read in ; do echo $in ; done | ./wisp.py - | guile -s /dev/stdin
+    while IFS= read in ; do echo $in ; done | ./wisp.py - | guile -s /dev/stdin
 
 (finish the input with CTRL-D)
+(Note: IFS= ensures that initial blanks are kept)