[PATCH] PR fortran/58001 -- Handle tab in FORMAT

[Steve Kargl]

An earlier version of the attached patch lingered in bugzilla
for over 3 years.  I've updated the patch to include Manuel's
comment #12.  Regression tested on x86_64-*-freebsd.  OK to
commit?

2016-11-16  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/58001
	* io.c (next_char_not_space): Update handling of a 'tab' in a FORMAT.
 	(format_lex): Adjust invocations of next_char_not_space().
 
2016-11-16  Steven G. Kargl  <kargl@gcc.gnu.org>

	PR fortran/58001
	* gfortran.dg/fmt_tab_1.f90: Adjust testcase.
	* gfortran.dg/fmt_tab_2.f90: Ditto.

-- 
Steve
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