Fix git version parsing when there are spaces

vcsh

@@ -476,7 +476,7 @@ write_gitignore() {
 
 	use
 	cd "$VCSH_BASE" || fatal "could not enter '$VCSH_BASE'" 11
-	local GIT_VERSION=$(git --version)
+	local GIT_VERSION="$(git --version)"
 	local GIT_VERSION_MAJOR=$(echo $GIT_VERSION | sed -n 's/.* \([0-9]\)\..*/\1/p')
 	local GIT_VERSION_MINOR=$(echo $GIT_VERSION | sed -n 's/.* \([0-9]\)\.\([0-9]\)\..*/\2/p')
 	OLDIFS=$IFS