@dlmweb - thanks for your suggestion to rescan ... i did (after i cleared logs and made a couple tweaks to scan options) ... and after two scans, the second one yielded results in that it pointed to the offending files (see below) ...
interesting in that bulk of complaints had to do with readme files ... thus not sure if this is a WP update thing (e.g., readme's not getting updated properly when plugin gets updated) or ..??..
e.g., the wordpress-importer/readme.txt flagged the "Tested up to: 3.8" and "Stable tag: 0.6.1" whereas the readme file on my server had "Tested up to: 3.6" and "Stable tag: 0.6" ...
similar WordFence nitpicks with the other plugin readme files ...
but two of the three php files flagged by WordFence are a bit worrisome ... the loginlockdown.php file was modified by me and noted so for fine tuned error messages so that is okay ... but the changes to pods/includes/general.php and leaflet-maps-marker/inc/showmap.php files are a bit concerning ...
@zztype ... ditto here on your "Had me all shook up!" ... yeesh me too and fact i was bombarded today on other frustration web fronts (besides this WordFence one) had me longing for calm shores of Kona HI free of code and hacks but i digress ...
@everybody ... while there are many headlines reminding us what is broken in our world, Kudos and BIG Thanks to WP Community for these forums so we can share, improve, upgrade, et al :>) cordially, chuck scott
from scan showing files with warnings
* Modified plugin file: wp-content/plugins/bbpress/readme.txt
* Modified plugin file: wp-content/plugins/exec-php/docs/readme.html
* Modified plugin file: wp-content/plugins/exec-php/readme.txt
* Modified plugin file: wp-content/plugins/imsanity/readme.txt
* Modified plugin file: wp-content/plugins/leaflet-maps-marker/inc/showmap.php
* Modified plugin file: wp-content/plugins/login-lockdown/loginlockdown.php
* Modified plugin file: wp-content/plugins/meteor-slides/readme.txt
* Modified plugin file: wp-content/plugins/multisite-user-management/readme.txt
* Modified plugin file: wp-content/plugins/piklist/readme.txt
* Modified plugin file: wp-content/plugins/pods/includes/general.php
* Modified plugin file: wp-content/plugins/qr-code-hoerandl/readme.txt
* Modified plugin file: wp-content/plugins/simply-exclude/readme.txt
* Modified plugin file: wp-content/plugins/wordpress-importer/readme.txt