Const warnings in psql

.\src\bin\psql\print.c(1912): warning C4090: 'function' : different
'const' qualifiers
.\src\bin\psql\print.c(1913): warning C4090: 'function' : different
'const' qualifiers

Variables are declared const, are you really supposed to pass that to
free()? Cast at free()? Remove const?

//Magnus