Instruct system to trust user identity certifications made by KEYID.
A certifier domain can be specified with the `-n' or `--domain'
option. A certifier trust level can be specified with the `-t' or
-`--trust' option (default is `full'). A certifier trust depth can be
-specified with the `-d' or `--depth' option (default is 1). `a' may
-be used in place of `add-identity-certifier'.
+`--trust' option (possible values are `1' for `marginal' and `2' for
+`full' (default is `2')). A certifier trust depth can be specified
+with the `-d' or `--depth' option (default is 1). `a' may be used in
+place of `add-identity-certifier'.
.TP
.B remove-identity-certifier KEYID
Instruct system to ignore user identity certifications made by KEYID.