[Bug testsuite/53028] add dg-pedantic

[mikestump at comcast dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53028

--- Comment #6 from Mike Stump <mikestump at comcast dot net> 2012-04-18 22:42:55 UTC ---
So, do you have a pointer to where a maintainer said that they require 3
duplicates for a piece of work?  For all similar future work?  They usually
say, please include a testcase, meaning, one testcase.  One is certainly
reasonable.  For some work, for some cases, they might want 2 or 3 testcases,
but, those I suspect should be rare to very rare.  The requirements for 3 for
that change should not be read as to be generally require 3 for all future
changes...  or, at least, that'd be my interpretation.