grim/testing

Fix a -Wlogical-not-parentheses warning in zephyr
release-2.x.y
2021-06-07, Gary Kramlich
2f616a33f583
Fix a -Wlogical-not-parentheses warning in zephyr

Testing Done:
Compiled using clang with `-Wlogical-not-parentheses` and verified the warning was gone.

Bugs closed: PIDGIN-17528

Reviewed at https://reviews.imfreedom.org/r/731/
How to build Pidgin for Windows using MinGW
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For the latest build instructions, please refer to:
http://developer.pidgin.im/wiki/BuildingWinPidgin