fix typos

win/tty/termcap.c

@@ -600,7 +600,7 @@ xputc(int c) /* actually char, but explicitly specify its widened type */
      *
      * xputc() used to be declared as 'void xputc(c) char c; {}' but
      * avoiding the proper type 'int' just to avoid (void) casts when
-     * ignoring the result can't have been sufficent reason to add it.
+     * ignoring the result can't have been sufficient reason to add it.
      * It also had '#if apollo' conditional to have the arg be int.
      * Matching putchar()'s declaration and using explicit casts where
      * warranted is more robust, so we're just a jacket around that.
@@ -1009,7 +1009,7 @@ init_hilite(void)
             Strcat(hilites[CLR_BLACK], scratch);
         }
     } else {
-        /* But it's concievable that hilighted black-on-black could
+        /* But it's conceivable that hilighted black-on-black could
          * still be invisible on many others.  We substitute blue for
          * black.
          */