Replaced stcmp() by str_is_equal().

src/cdf_write.c

src/cdi_att.c

src/cdi_fdb.c

src/cdi_int.c

src/grb_write.c

src/gribapi_utilities.c

src/grid.c

src/model.c

src/stream.c

src/stream_cdf_o.c

src/subtype.c

src/table.c

src/varscan.c

src/vlist.c

src/vlist_var_key.c