Log Message:
Update tradcpp to 0.5.
patch-main.c is rolled in.

release 0.5 (20150612)
   - Don't report unclosed comments as "No newline at end of file".
   - Don't rely on <stdbool.h> existing, as (predictably) it doesn't
     work on Solaris.
   - Similarly, don't rely on C11 anonymous unions as the Solaris
     compiler vomits on them.
   - Typo fix in man page from Jason McIntyre; and change "Usage" to
     "usage" in usage for pedantic reasons, from Igor Sobrado.
   - Accept "-" as either input or output file name to mean stdin or
     stdout respectively. Suggested by Jonathan Gray.
   - Fix output spacing behavior to match gcc when newlines appear in or
     while looking for macro arguments. Partly from Joerg Sonnenberger.
   - Implement __FILE__ and __LINE__ macros. Mostly from Joerg Sonnenberger.
   - Implement #line. Partly from Joerg Sonnenberger.
   - Declare usage() with PF(). From wiz.