Fix the gclient trampoline on cygwin to redirect to the batch file.

TBR=bradnelson
Review URL: http://codereview.chromium.org/115061

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@15496 0039d316-1c4b-4281-b951-d872f2087c98

gclient

@@ -6,6 +6,13 @@
 # This script will try to sync the bootstrap directories and then defer control.
 
 base_dir=$(dirname "$0")
+ 
+# Use the batch file as an entry point if on cygwin.
+if [ "${OSTYPE}" = "cygwin" ]; then
+   ${base_dir}/gclient.bat $*
+   exit
+fi
+
 
 if [ "X$DEPOT_TOOLS_UPDATE" != "X0" -a -e "$base_dir/.svn" ]
 then