[bug-gettext] no-c-format flag by default for puts and fputs

[Göran Uddeborg]

In the gettext manual there is a comment that strings are sometimes
printed using printf when fputs could have been used
(http://www.gnu.org/software/gettext/manual/gettext.html#c_002dformat-Flag).
This is a problem if the original string is not considered to be
c-format, but the translated string contains signs that would be
interpreted by printf.

Recently there was an example of the reverse problem in a coreutils
message.  A string that was written using fputs was considered
c-format, which made translating difficult.
(http://debbugs.gnu.org/cgi/bugreport.cgi?bug=11470 and a number of
duplicates)

xgettext has a number of predefined c-format flags for the stdio
functions in gettext-tools/src/x-c.c.  Wouldn't it make sense to add
no-c-format flags to the list for the non-formatting stdio functions
like puts, fputs, and maybe fwrite?  Or would that be the wrong way to
do it?