scripts: remote-gdb: fix target / libc matching on directory names

Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>

SVN-Revision: 44088

scripts/remote-gdb

@@ -14,7 +14,7 @@ if( opendir SD, "$Bin/../staging_dir" )
 {
 	my ( $tid, $arch, $libc, @arches );
 
-	if( $ARGV[1] =~ m!\btarget-(.+?)_(([^_]+libc|musl)[^/]+)\b!i )
+	if( $ARGV[1] =~ m!\btarget-(.+?)_(([^/_]+libc|musl)[^/]+)\b!i )
 	{
 		print("Using target $1 ($2)\n");
 		($arch, $libc) = ($1, $2);
@@ -26,7 +26,7 @@ if( opendir SD, "$Bin/../staging_dir" )
 
 		while( defined( my $e = readdir SD ) )
 		{
-			if( -d "$Bin/../staging_dir/$e" && $e =~ /^target-(.+?)_(([^_]+.libc|musl)+)/i )
+			if( -d "$Bin/../staging_dir/$e" && $e =~ /^target-(.+?)_(([^_]+libc|musl).+)/i )
 			{
 				push @arches, [ $1, $2 ];
 				printf(" %2d) %s (%s)\n", @arches + 0, $1, $2);