minor compress() cleanup

sql/item_strfunc.cc:
  typo fixed
sql/share/english/errmsg.txt:
  wording

sql/item_strfunc.cc

@@ -2554,7 +2554,7 @@ String *Item_func_compress::val_str(String *str)
    size of the destination buffer, which must be at least 0.1% larger than
    sourceLen plus 12 bytes.
 
-   Proportion 120/100 founded by Sinica with help of procedure
+   Proportion 120/100 founded by Sinisa with help of procedure
    compress(compress(compress(...)))
    I.e. zlib give number 'at least'..
   */

sql/share/english/errmsg.txt

@@ -260,9 +260,9 @@ character-set=latin1
 "Slave is already running",
 "Slave has already been stopped",
 "Too big size of uncompressed data. The maximum size is %d. (probably, length of uncompressed data was corrupted)",
-"ZLIB: Not enough memory available for zlib",
-"ZLIB: Not enough room in the output buffer for zlib (probably, length of uncompressed data was corrupted)",
-"ZLIB: Input data was corrupted for zlib",
+"ZLIB: Not enough memory",
+"ZLIB: Not enough room in the output buffer (probably, length of uncompressed data was corrupted)",
+"ZLIB: Input data corrupted",
 "%d line(s) was(were) cut by group_concat()",
 "Row %ld doesn't contain data for all columns",
 "Row %ld was truncated; It contained more data than there where input columns",