patch 9.0.0934: various code formatting issues

Problem:    Various code formatting issues.
Solution:   Improve code formatting.
diff --git a/src/screen.c b/src/screen.c
index 5855b90..4728811 100644
--- a/src/screen.c
+++ b/src/screen.c
@@ -1017,7 +1017,7 @@
     char_u	*stl;
     char_u	*p;
     char_u	*opt_name;
-    int         opt_scope = 0;
+    int		opt_scope = 0;
     stl_hlrec_T *hltab;
     stl_hlrec_T *tabtab;
     win_T	*ewp;