patch 8.2.4928: various white space and cosmetic mistakes

Problem:    Various white space and cosmetic mistakes.
Solution:   Change spaces to tabs, improve comments.
diff --git a/src/vim.h b/src/vim.h
index f17da41..4e213b2 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -1375,8 +1375,8 @@
 				// entering its window
     EVENT_TERMRESPONSE,		// after setting "v:termresponse"
     EVENT_TEXTCHANGED,		// text was modified not in Insert mode
-    EVENT_TEXTCHANGEDI,         // text was modified in Insert mode
-    EVENT_TEXTCHANGEDP,         // TextChangedI with popup menu visible
+    EVENT_TEXTCHANGEDI,		// text was modified in Insert mode
+    EVENT_TEXTCHANGEDP,		// TextChangedI with popup menu visible
     EVENT_TEXTYANKPOST,		// after some text was yanked
     EVENT_USER,			// user defined autocommand
     EVENT_VIMENTER,		// after starting Vim