patch 8.1.1086: too many curly braces

Problem:    Too many curly braces.
Solution:   Remove curly braces where they are not needed. (Hirohito Higashi,
            closes #3982)
diff --git a/src/edit.c b/src/edit.c
index 0b5d0e8..d378cd1 100644
--- a/src/edit.c
+++ b/src/edit.c
@@ -5363,9 +5363,8 @@
 	if (end == NULL && vpeekc() == NUL)
 	    break;
 	do
-	{
 	    c = vgetc();
-	} while (c == K_IGNORE || c == K_VER_SCROLLBAR || c == K_HOR_SCROLLBAR);
+	while (c == K_IGNORE || c == K_VER_SCROLLBAR || c == K_HOR_SCROLLBAR);
 	if (c == NUL || got_int)
 	    // When CTRL-C was encountered the typeahead will be flushed and we
 	    // won't get the end sequence.