BUG/MINOR: stick-table: report the correct action name in error message

sc-inc-gpc() learned to use arrays in 2.5 with commit 4d7ada8f9 ("MEDIUM:
stick-table: add the new arrays of gpc and gpc_rate"), but the error
message says "sc-set-gpc" instead of "sc-inc-gpc". Let's fix this to
avoid confusion.

This can be backported to 2.5.
1 file changed