makechrootpkg: fix short option handling for makepkg_args

Currently, when multiple short options are passed as a single argument,
only the one that matches the first case statement will be parsed. This
shall be fixed by using switch-case resume.

src/makechrootpkg.in

@@ -311,14 +311,14 @@ fi
 # Pass all arguments after -- right to makepkg
 makepkg_args+=("${@:$OPTIND}")
 
-# See if -R or -e was passed to makepkg
+# See if -R, -e or -A was passed to makepkg
 for arg in "${@:$OPTIND}"; do
 	case ${arg%%=*} in
 		--skip*|--holdver|--ignorearch) verifysource_args+=("$arg") ;;
 		--repackage|--noextract) keepbuilddir=1 ;;
 		--*) ;;
-		-*A*) verifysource_args+=(-A) ;;
-		-*R*|-*e*) keepbuilddir=1 ;;
+		-*A*) verifysource_args+=(-A) ;;&
+		-*R*|-*e*) keepbuilddir=1 ;;&
 	esac
 done