Strip newline/whitespace from 'which' output when...

git-cl-upload-hook

Index: git-cl-upload-hook
===================================================================
--- git-cl-upload-hook	(revision 60321)
+++ git-cl-upload-hook	(working copy)
@@ -21,7 +21,7 @@
 if not depot_tools_path:
   # Grab a `which gclient', which gives first match
   # `which' also uses PATH, but is not restricted to specific directory name
-  path = Popen(["which", "gclient"], stdout=PIPE).communicate()[0]
+  path = Popen(["which", "gclient"], stdout=PIPE).communicate()[0].strip()
   if path:
     depot_tools_path = path.replace("/gclient","")