Darragh Bailey 146d285eb9 Support default string values for variables
Provide syntax support for specifying default values to be substituted
for variables during deep_format when no other replacement is provided.

Allows for individual variables to have a default or be optionally blank
should nothing be placed after the custom specifier.

Change-Id: Ib97a33a2bbca123791d4ca6ef5248ed200992565
2016-11-11 21:38:28 +00:00
..
2013-01-15 18:32:46 +00:00