./cifparse: tests/cifparse_026.inp(3) data_X2: WARNING, string with spaces without quotes -- fixed
./cifparse: tests/cifparse_026.inp(5) data_X2: WARNING, single-quoted string is missing a closing quote -- fixed
./cifparse: tests/cifparse_026.inp(6) data_X2: WARNING, double-quoted string is missing a closing quote -- fixed
data_X2
_tag1                            'bad unquoted string'
_tag2                            1234
_tag3                            'single missing'
_tag4                            "double missing"
_tag5                            "OK"
