Allow '.' components in manifest paths.  They are always the first component of mtree -C and install -M output and are easily skipped.
Allow '.' components in manifest paths.  They are always the first
component of mtree -C and install -M output and are easily skipped.

Reviewed by:	marcel
Sponsored by:	DARPA, AFRL

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase