Fixing a compile error.

st.c

@@ -2530,7 +2530,7 @@ xdraws(char *s, Glyph base, int x, int y, int charlen, int bytelen) {
 		xclear(0, (y == 0)? 0 : winy, borderpx,
 			winy + xw.ch + ((y >= term.row-1)? xw.h : 0));
 	}
-	if(x + charlen >= term.col)
+	if(x + charlen >= term.col) {
 		xclear(winx + width, (y == 0)? 0 : winy, xw.w,
 			((y >= term.row-1)? xw.h : (winy + xw.ch)));
 	}