fix typo in pe variable name

[rem1776]

Description
fixes a typo where the pe should have been used instead of the p variable for the warning log routine. This caused failures with debug mode due to the uninitialized value being used.

How Has This Been Tested?
aquaplanet regressions with intel23-classic and debug flags

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules
• New check tests, if applicable, are included
• make distcheck passes