xbps-src: fix 'build-pkg all' with pkgs with $revision set.

--HG--
extra : convert_revision : 866ef758ef96722676e575acebee1fe3be8a9df1

bin/xbps-src/main.sh

@@ -221,7 +221,7 @@ build-pkg)
 	if [ "$2" = "all" ]; then
 		for f in $($XBPS_BIN_CMD list|awk '{print $1}'); do
 			version=$($XBPS_REGPKGDB_CMD version $f)
-			if [ ! -d $XBPS_DESTDIR/$f-$version ]; then
+			if [ ! -d $XBPS_DESTDIR/$f-${version%_[0-9]*} ]; then
 				echo -n "Ignoring $f-$version, no destination "
 				echo "directory!"
 				continue