causes the Server to crash.

Post-pushbuild fix

Pushbuild genereted valgrind warnings.

Changed function to safer variant.


sql/sql_partition.cc:
  Bug#30695: An apostrophe ' in the comment of the ADD PARTITION
      causes the Server to crash.
  
  Fix for valgrind warning in pushbuild.
  String.c_prt fcn is not as safe as comment says.
  (gives valgrind errors in this case)