No error checking when using long grid names.

Using long grid name:
`a%ne30np4.pg3_l%ne30np4.pg3_oi%tx2_3v2_r%r05_g%gris4_w%wgx3v7_z%null_m%tx2_3v2`
works as expected in compset `1850_CAM70%LT_CLM60%BGC-CROP_CICE_MOM6_MOSART_DGLC%NOEVOLVE_WW3_SESP`

however grid name:
`a%ne30np4.pg3_l%ne30pg4.pg3_oi%tx2_3v2_r%r05_g%gris4_w%wgx3v7_z%null_m%tx2_3v2`

Fails to generate a land grid mesh file and thus fails but it's a pretty subtle failure and very difficult to spot the cause. Can you see the difference between these two grid specifications? It took hours for me to spot it.

It would be preferable if the CCS let the user know right away if there was no match for a grid specification.