- revert change introduced in 5.4.11/12 that breaks gpg calls; rel 6

GPG key name/ID passed as cmd to rpmCheckPassPhrase is enclosed in
doble quotes, while poptParseArgvString cleaned up command line
before converting to argv list, argvSplit does not, and passes
gpg name/ID to gpg as "\"XXXXX\"" (doble, escaped quoting),
thus making it unverifiable;