Fix *earc jobs where the number of members isn't a multiple of 10 (#2424

)

This limits the earc search for ensemble members to the maximum number
of members, which prevents attempting to send non-existent members to
HPSS if the number of ensemble members is not a multiple of 10.

Resolves #2390s

ush/hpssarch_gen.sh

@@ -681,7 +681,7 @@ if [[ ${type} == "enkfgdas" || ${type} == "enkfgfs" ]]; then
     touch "${DATA}/${RUN}_restartb_grp${n}.txt"
 
     m=1
-    while (( m <= NMEM_EARCGRP )); do
+    while (( m <= NMEM_EARCGRP && (n-1)*NMEM_EARCGRP+m <= NMEM_ENS )); do
       nm=$(((n-1)*NMEM_EARCGRP+m))
       mem=$(printf %03i ${nm})
       head="${RUN}.t${cyc}z."