checkpatch: add --strict check for ifs with unnecessary parentheses

			}

		}

# check for unnecessary parentheses around comparisons in if uses

		if ($^V && $^V ge 5.10.0 && defined($stat) &&

		    $stat =~ /(^.\s*if\s*($balanced_parens))/) {

			my $if_stat = $1;

			my $test = substr($2, 1, -1);

			my $herectx;

			while ($test =~ /(?:^|[^\w\&\!\~])+\s*\(\s*([\&\!\~]?\s*$Lval\s*(?:$Compare\s*$FuncArg)?)\s*\)/g) {

				my $match = $1;

				# avoid parentheses around potential macro args

				next if ($match =~ /^\s*\w+\s*$/);

				if (!defined($herectx)) {

					$herectx = $here . "\n";

					my $cnt = statement_rawlines($if_stat);

					for (my $n = 0; $n < $cnt; $n++) {

						my $rl = raw_line($linenr, $n);

						$herectx .=  $rl . "\n";

						last if $rl =~ /^[ \+].*\{/;

					}

				}

				CHK("UNNECESSARY_PARENTHESES",

				    "Unnecessary parentheses around '$match'\n" . $herectx);

			}

		}

#goto labels aren't indented, allow a single space however

		if ($line=~/^.\s+[A-Za-z\d_]+:(?![0-9]+)/ and

		   !($line=~/^. [A-Za-z\d_]+:/) and !($line=~/^.\s+default:/)) {