When looking for new lines in diff output, grep for '^[>+]' instead of '^>', in order to catch both normal and unified diffs.
When looking for new lines in diff output, grep for '^[>+]' instead of
'^>', in order to catch both normal and unified diffs.

Problem reported by:	volker at vwsoft dot com via -stable
MFC after:	3 days

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