perl-style grep for mac

so skip the while thing

t/03_syntax_check.t

@@ -9,7 +9,10 @@ my $tests = 0;
 my $prg="testssl.sh";
 my $os="$^O";
 
-
+if ( $os eq "darwin" ){
+    printf "%s\n", "Skipping checks";
+    exit 0;
+}
 
 #1
 printf "\n%s\n", "Testing for missing vars at left hand side in double square brackets ...";
@@ -20,6 +23,7 @@ is(scalar(@matches), 0, "Checking bad '[[ LHS' patterns")
     or diag(@matches);
 $tests++;
 
+
 #2
 printf "\n%s\n", "Testing for backticks ...";