Fixed typos

- Some of the typos was because a Russian character was
  accidentally used instead of an ascii one.

Author: montywi

mysys/mf_iocache.c

@@ -16,7 +16,7 @@
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1335  USA */
 
 /*
-  Cashing of files with only does (sequential) read or writes of fixed-
+  Caching of files with only does (sequential) read or writes of fixed-
   length records. A read isn't allowed to go over file-length. A read is ok
   if it ends at file-length and next read can try to read after file-length
   (and get a EOF-error).

plugin/server_audit/server_audit.c

@@ -2691,7 +2691,7 @@ static int server_audit_init(void *p __attribute__((unused)))
           PLUGIN_STR_VERSION, PLUGIN_DEBUG_VERSION);
 
   /* The Query Cache shadows TABLE events if the result is taken from it */
-  /* so we warn users if both Query Cashe and TABLE events enabled.      */
+  /* so we warn users if both Query Cache and TABLE events enabled.      */
   if (!started_mysql && FILTER(EVENT_TABLE))
   {
     ulonglong *qc_size= (ulonglong *) dlsym(RTLD_DEFAULT, "query_cache_size");

sql/sql_lex.cc

@@ -11054,7 +11054,7 @@ void mark_or_conds_to_avoid_pushdown(Item *cond)
        After that the transformed condition is attached into attach_to_conds
        list.
     2. Part of some other condition c1 that can't be entirely pushed
-       (if с1 isn't marked with any flag).
+       (if c1 isn't marked with any flag).
 
        For example:
 

storage/maria/ma_statrec.c

@@ -46,7 +46,7 @@ my_bool _ma_write_static_record(MARIA_HA *info, const uchar *record)
       return(2);
     }
     if (info->opt_flag & WRITE_CACHE_USED)
-    {				/* Cash in use */
+    {				/* Cache in use */
       if (my_b_write(&info->rec_cache, record,
 		     info->s->base.reclength))
 	goto err;