ucf errors upgrading php5-cli and libapache2-mod-php5

[Owen Dunn]

Ubuntu 14.04.3 LTS
ucf package version: 3.0027+nmu1

Attempting to upgrade php5-cli and libapache2-mod-php5 packages produces the following error:

Setting up php5-cli (5.5.9+dfsg-1ubuntu4.17) ...
ucfr: Attempt from package php5-cli to take /etc/php5/cli/php.ini away from package 9:9:9:10:11:12:php5-cli
ucfr: Aborting.
dpkg: error processing package php5-cli (--configure):
 subprocess installed post-installation script returned error exit status 4
Setting up libapache2-mod-php5 (5.5.9+dfsg-1ubuntu4.17) ...
ucfr: Attempt from package libapache2-mod-php5 to take /etc/php5/apache2/php.ini away from package 7:7:7:7:8:9:libapache2-mod-php5
ucfr: Aborting.
dpkg: error processing package libapache2-mod-php5 (--configure):
 subprocess installed post-installation script returned error exit status 4

The strange package names seem to be present in /var/lib/ucf/registry which I attach.
Previous versions of the registry file in registry.1 et seq have fewer prepended numbers
until registry.5 which has none.

[Owen Dunn (osd1000)]

Not actually a bug; it turns out GREP_OPTIONS was set in the environment to include "-n".