Removed wrong ascii codes from source code.

Fixed core dump in --help


include/heap.h:
  Removed a wrong character (ascii 0xa0), which looked like a space.
  This will cause some debuggers display the source code in a wrong
  way. May cut the rest of the file off and looks like a debugger
  problem, which it isn't.
mysys/my_getopt.c:
  Removed a wrong character (ascii 0xa0), which looked like a space.
  This will cause some debuggers display the source code in a wrong
  way. May cut the rest of the file off and looks like a debugger
  problem, which it isn't.
sql/mysqld.cc:
  Wrong type.

include/heap.h

@@ -111,7 +111,7 @@ struct st_heap_info;			/* For referense */
 
 typedef struct st_hp_keydef		/* Key definition with open */
 {
-  uint flag;				/* HA_NOSAME | HA_NULL_PART_KEY */
+  uint flag;				/* HA_NOSAME | HA_NULL_PART_KEY */
   uint keysegs;				/* Number of key-segment */
   uint length;				/* Length of key (automatic) */
   uint8 algorithm;			/* HASH / BTREE */

mysys/my_getopt.c

@@ -486,7 +486,7 @@ invalid value '%s'\n",
       }
       get_one_option(optp->id, optp, argument);
 
-      (*argc)--; /* option handled (shortorlong), decrease argument count */
+      (*argc)--; /* option handled (short or long), decrease argument count */
     }
     else /* non-option found */
       (*argv)[argvpos++]= cur_arg;

sql/mysqld.cc

@@ -5004,7 +5004,7 @@ Disable with --skip-bdb (will save memory).",
    (gptr*) &global_system_variables.engine_condition_pushdown,
    0, GET_BOOL, NO_ARG, 0, 0, 0, 0, 0, 0},
   {"event-scheduler", OPT_EVENT_SCHEDULER, "Enable/disable the event scheduler.",
-   (gptr*) &Events::opt_event_scheduler, (gptr*) &Events::opt_event_scheduler, 0, GET_STR,
+   (gptr*) &Events::opt_event_scheduler, (gptr*) &Events::opt_event_scheduler, 0, GET_ULONG,
     REQUIRED_ARG, 2/*default*/, 0/*min-value*/, 2/*max-value*/, 0, 0, 0},
   {"exit-info", 'T', "Used for debugging;  Use at your own risk!", 0, 0, 0,
    GET_LONG, OPT_ARG, 0, 0, 0, 0, 0, 0},