Fix summaries that are bigger than one line.
Fix summaries that are bigger than one line.

In certain cases it seems like summaries actually get bigger
than one line, which causes rpmbuild to puke so we need to
analyze the spec file and ensure that the summary is not more
than one line and truncate it if it is.

Change-Id: Ia2de237eedee86eda151525c074399208c95bc28

mc2014/anvil,stackforge/anvil,stackforge/anvil,mc2014/anvil