War on whitespace

This uses "git-apply --whitespace=strip" to fix whitespace errors that have
crept in to our source files over time.  There are a few files that need
to have trailing whitespaces (most notably, test vectors).  The results
still passes the test, and build result in Documentation/ area is unchanged.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/git-http-push.txt

@@ -52,7 +52,7 @@ Specifying the Refs
 
 A '<ref>' specification can be either a single pattern, or a pair
 of such patterns separated by a colon ":" (this means that a ref name
-cannot have a colon in it).  A single pattern '<name>' is just a 
+cannot have a colon in it).  A single pattern '<name>' is just a
 shorthand for '<name>:<name>'.
 
 Each pattern pair consists of the source side (before the colon)