commitpkg: Fix leading whitespace in commit messages

Commit c51cc8d3 erroneously introduced a
tab character that is prepended to the body of each commit message. Fix
this by using C-style newline escape sequences which will avoid further
whitespace issues caused by re-indentation of code at this point.

Signed-off-by: Lukas Fleischer <archlinux@cryptocrack.de>
Signed-off-by: Pierre Schmitz <pierre@archlinux.de>

commitpkg

@@ -110,9 +110,7 @@ fi
 
 if [ -n "$(svn status -q)" ]; then
 	echo -n 'committing changes to trunk...'
-	msgtemplate="upgpkg: $pkgbase $(get_full_version ${epoch:-0} $pkgver $pkgrel)
-
-	"
+	msgtemplate="upgpkg: $pkgbase $(get_full_version ${epoch:-0} $pkgver $pkgrel)"$'\n\n'
 	if [ -n "$1" ]; then
 		svn commit -q -m "${msgtemplate}${1}" || abort
 	else