bindkey listing bugfix

[Zefram <zefram@xxxxxxxxxxxxxxxxx>]

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My keymap patch, 2648, contains a small bug: it doesn't escape a "^"
being output as part of a key sequence.

 -zefram

      *** Src/Zle/zle_utils.c	1996/12/26 19:13:34	1.3
      --- Src/Zle/zle_utils.c	1996/12/31 02:33:58
      ***************
      *** 354,360 ****
        	    len++;
        	    c ^= 64;
        	}
      ! 	len += c == '\\';
        	len++;
            }
            ptr = buf = zalloc(len);
      --- 354,360 ----
        	    len++;
        	    c ^= 64;
        	}
      ! 	len += c == '\\' || c == '^';
        	len++;
            }
            ptr = buf = zalloc(len);
      ***************
      *** 370,376 ****
        	    *ptr++ = '^';
        	    c ^= 64;
        	}
      ! 	if(c == '\\')
        	    *ptr++ = '\\';
        	*ptr++ = c;
            }
      --- 370,376 ----
        	    *ptr++ = '^';
        	    c ^= 64;
        	}
      ! 	if(c == '\\' || c == '^')
        	    *ptr++ = '\\';
        	*ptr++ = c;
            }

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