fix: make subarch distinguishable for ab_match_arch

Signed-off-by: Ilikara <[email protected]>

Author: AirFortressIlikara

lib/builtin.sh

@@ -38,11 +38,11 @@ ab_reverse_patches() {
 ab_match_arch() {
 	# Check whether the calling of function is illegal
 	if [[ -z $1 ]]; then
-		aberr "ab_match_arch() was called but no pattern was specified."
+	aberr "ab_match_arch() was called but no pattern was specified."
 		abinfo "Usage: ab_match_arch \"match_pattern\""
 		abdie "Misuse of ab_match_arch()! Refuse to proceed."
 	fi
-	if [[ ${ABHOST%%_*} = $1 ]]; then
+	if [[ ${ABHOST} = $1 ]]; then
 		abinfo "Architecture $ABHOST matches $1: taking true branch."
 		return 0
 	else