diff: emit_line_ws_markup() if/else style fix

Apply the simple rule: if you need {} in one arm of the if/else
if/else... cascade, have {} in all of them.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

Author: gitster

diff.c

@@ -1327,14 +1327,14 @@ static void emit_line_ws_markup(struct diff_options *o,
 			ws = NULL;
 	}
 
-	if (!ws && !set_sign)
+	if (!ws && !set_sign) {
 		emit_line_0(o, set, NULL, 0, reset, sign, line, len);
-	else if (!ws) {
+	} else if (!ws) {
 		emit_line_0(o, set_sign, set, !!set_sign, reset, sign, line, len);
-	} else if (blank_at_eof)
+	} else if (blank_at_eof) {
 		/* Blank line at EOF - paint '+' as well */
 		emit_line_0(o, ws, NULL, 0, reset, sign, line, len);
-	else {
+	} else {
 		/* Emit just the prefix, then the rest. */
 		emit_line_0(o, set_sign ? set_sign : set, NULL, !!set_sign, reset,
 			    sign, "", 0);