mandoc test: Check for mandoc in PATH, only fail in case of errors

use Test::More tests => 3;

SKIP: {

	qx{mandoc -V};

	my $mandoc_present = 0;

	if ( $? != 0 ) {

	for my $path (split(qr{:}, $ENV{PATH})) {

		if (-x "${path}/mandoc") {

			$mandoc_present = 1;

			last;

		}

	}

	if ( not $mandoc_present ) {

		diag('mandoc not installed, test skipped. This is NOT fatal.');

		skip( 'mandoc not installed', 3 );

	}

	for my $file ( 'feh', 'feh-cam', 'gen-cam-menu' ) {

		qx{mandoc -Tlint man/${file}.1};

		qx{mandoc -Tlint -Werror man/${file}.1};

		is( $?, 0, "${file}.1: Valid mdoc syntax" );

	}

}