patch 9.1.1390: style: more wrong indentation

Problem:  style: more wrong indentation
Solution: reformat a few more places
          (Yegappan Lakshmanan)

closes: #17309

Signed-off-by: Yegappan Lakshmanan <yegappan@yahoo.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
diff --git a/src/screen.c b/src/screen.c
index ab37e1d..4fcd9d3 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -1580,7 +1580,7 @@
 }
 #endif
 
-      static void
+    static void
 screen_start_highlight(int attr)
 {
     attrentry_T *aep = NULL;
@@ -1738,7 +1738,7 @@
     }
 }
 
-      void
+    void
 screen_stop_highlight(void)
 {
     int	    do_ME = FALSE;	    // output T_ME code
@@ -3544,7 +3544,7 @@
      * - redrawing for a callback and there is a modeless selection
      * - there is a popup window
      */
-     if (!screen_valid(TRUE)
+    if (!screen_valid(TRUE)
 	     || line_count <= 0 || line_count > p_ttyscroll
 	     || end > Rows
 #ifdef FEAT_CLIPBOARD