Enabling enacs and adding compatibility to xterm and urxvt for alternative

charsets.

st.c

@@ -1700,6 +1700,7 @@ tputc(char *c, int len) {
 				strescseq.type = ascii;
 				term.esc |= ESC_STR;
 				break;
+			case ')':
 			case '(':
 				term.esc |= ESC_ALTCHARSET;
 				break;

st.info

@@ -33,6 +33,7 @@ st| simpleterm,
 	ed=\E[J,
 	el=\E[K,
 	el1=\E[1K,
+	enacs=\E)0,
 	flash=\E[?5h\E[?5l,
 	fsl=^G,
 	home=\E[H,