PR fortran/32860

	* error.c (error_uinteger): New function.
	(error_integer): Call error_uinteger.
	(error_print): Handle %u, %lu, %li and %ld format specifiers.
	* interface.c (compare_actual_formal): Use the new %lu specifier.

	* c-format.c (gcc_gfc_length_specs): New array.
	(gcc_gfc_char_table): Add unsigned specifier, and references to
	the l length modifier.
	(format_types_orig): Use the new gcc_gfc_length_specs.

	* gcc.dg/format/gcc_gfc-1.c: Updated with new formats.

From-SVN: r127382