Environment settings were broken. Fix due to Andros Tantas

[originally from svn r465]

windlg.c

@@ -267,7 +267,7 @@ static void load_settings (char *section, int do_host) {
 		    c = '\t';
 		if (c == '\\')
 		    c = *p++;
-		*p++ = c;
+		*q++ = c;
 	    }
 	    if (*p == ',') p++;
 	    *q++ = '\0';