longer showing SP names.
SHOW CREATE VIEW uses Item::print() methods to reconstruct the 
statement text from the parse tree.
The print() method for stored procedure calls needs allocate 
space to print the function's quoted name.
It was incorrectly calculating the length of the buffer needed 
(was too short).
Fixed to reflect the actual space needed.


mysql-test/r/sp.result:
  Bug #28605: test case
mysql-test/t/sp.test:
  Bug #28605: test case
sql/item_func.cc:
  Bug #28605: fixed the string length calculation