*: Fix clint errors

src/nvim/api/private/helpers.c

@@ -110,7 +110,7 @@ bool try_end(Error *err)
 {
   // Note: all globals manipulated here should be saved/restored in
   // try_enter/try_leave.
-  --trylevel;
+  trylevel--;
 
   // Without this it stops processing all subsequent VimL commands and
   // generates strange error messages if I e.g. try calling Test() in a

src/nvim/ex_eval.c

@@ -564,7 +564,7 @@ static void discard_exception(except_T *excp, int was_finished)
  */
 void discard_current_exception(void)
 {
-  discard_exception(current_exception, FALSE);
+  discard_exception(current_exception, false);
   // Note: all globals manipulated here should be saved/restored in
   // try_enter/try_leave.
   current_exception = NULL;

src/nvim/ex_getln.c

@@ -2321,7 +2321,7 @@ enum { MAX_CB_ERRORS = 1 };
 
 /// Color command-line
 ///
-/// Should use built-in command parser or user-specified one. Currently only the 
+/// Should use built-in command parser or user-specified one. Currently only the
 /// latter is supported.
 ///
 /// Operates on ccline, saving results to ccline_colors.