[hackers] [st] Use != instead of ^ for logical values. || noname

[git]

commit 1b0b9759dca9739da04f5c8a206b2f8ee5ed8b25
Author: noname <non...@inventati.org>
Date:   Wed Apr 23 23:12:36 2014 +0400

    Use != instead of ^ for logical values.
    
    sel.alt is only changed by
        sel.alt = IS_SET(MODE_ALTSCREEN);

diff --git a/st.c b/st.c
index 1a2b1dd..ff9bdd8 100644
--- a/st.c
+++ b/st.c
@@ -3457,7 +3457,7 @@ drawregion(int x1, int y1, int x2, int y2) {
        bool ena_sel = sel.ob.x != -1;
        long unicodep;
 
-       if(sel.alt ^ IS_SET(MODE_ALTSCREEN))
+       if(sel.alt != IS_SET(MODE_ALTSCREEN))
                ena_sel = 0;
 
        if(!(xw.state & WIN_VISIBLE))