Revert "tools/nxstyle: Back out part of last commit. Logic to avoid some false alarms was causing real style problems from being reported."

If we are going to use this tool for things like
git pre-commit hook or CI workflow, it's critical to
avoid false alarms.

This reverts commit de764af9aa.

tools/nxstyle.c

@@ -700,7 +700,7 @@ int main(int argc, char **argv, char **envp)
                * preceding line has no comment.
                */
 
-              if (line[n] != '}' /* && line[n] != '#' */ && !prevbrhcmt)
+              if (line[n] != '}' && line[n] != '#' && !prevbrhcmt)
                 {
                    ERROR("Missing blank line after comment", comment_lineno,
                          1);