PHPCS: fix up the code base [28] - rename a local variable
PHPCS: fix up the code base [28] - rename a local variable

Variable names should be in `snake_case`.

As this is a function local variable, it can be safely renamed without BC.

aaemnnosttv/wp-cli,trepmal/wp-cli,rodrigoprimo/wp-cli,aaemnnosttv/wp-cli,aaemnnosttv/wp-cli,trepmal/wp-cli,rodrigoprimo/wp-cli,trepmal/wp-cli,rodrigoprimo/wp-cli