Simplify loop condition.

st.c

@@ -944,7 +944,7 @@ getsel(void) {
 	ptr = str = xmalloc(bufsize);
 
 	/* append every set & selected glyph to the selection */
-	for(y = sel.nb.y; y < sel.ne.y + 1; y++) {
+	for(y = sel.nb.y; y <= sel.ne.y; y++) {
 		linelen = tlinelen(y);
 
 		if(sel.type == SEL_RECTANGULAR) {