label axis are not written

[jderouillat]

Example from CM6 validation, using axis such as :

dr2xml_opa9.xml:	<axis axis_ref="section_lim" dim_name="line" id="DR_siline_section_lim" label="(0,3)[  fram_strait canadian_archipelego barents_opening bering_strait  ]" long_name="ocean passage" name="sector" standard_name="region" />

In XIOS2 :

$ ncdump -h simassacrossline_SImon_ModelName_JobName_gn_185001-214912.nc
dimensions:
	axis_nbounds = 2 ;
	line = 4 ;
	str_len = 255 ;
	time = UNLIMITED ; // (1 currently)
variables:
	char sector(line, str_len) ;
		sector:name = "sector" ;
		sector:standard_name = "region" ;
		sector:long_name = "ocean passage" ;
	double time(time) ;

While in XIOS3 :

dimensions:
	axis_nbounds = 2 ;
	nemo__axis_undef_id_40 = 4 ;
	time = UNLIMITED ; // (1 currently)
variables:
	double time(time) ;

[jderouillat]

This issue was yet created, see 177.