[PATCH 5/9] sec-keys.eclass: port to esplit.eclass

Avoid global-scope use of a heredoc which requires the use of a temporary
file for any size with < EAPI 9 and with large sizes still with >= EAPI 9.

In this case, a followup could be to just use a while/read loop.

Closes: https://bugs.gentoo.org/978941
Signed-off-by: Sam James <[email protected]>
---
 eclass/sec-keys.eclass | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/eclass/sec-keys.eclass b/eclass/sec-keys.eclass
index ca1b4de572412..cc85423af10e0 100644
--- a/eclass/sec-keys.eclass
+++ b/eclass/sec-keys.eclass
@@ -43,7 +43,7 @@ esac
 if [[ ! ${_SEC_KEYS_ECLASS} ]]; then
 _SEC_KEYS_ECLASS=1
 
-inherit eapi9-pipestatus edo
+inherit eapi9-pipestatus edo esplit
 
 # @ECLASS_VARIABLE: SEC_KEYS_VALIDPGPKEYS
 # @PRE_INHERIT
@@ -68,7 +68,7 @@ _sec_keys_set_globals() {
 	for key in "${SEC_KEYS_VALIDPGPKEYS[@]}"; do
 		fingerprint=${key%%:*}
 		name=${key#${fingerprint}:}; name=${name%%:*}
-		IFS=, read -r -a locations <<<"${key##*:}"
+		mapfile -d '' locations < <(IFS=, esplit "${key##*:}")
 		[[ ${locations[@]} ]] || die "${ECLASS}: ${name}: PGP key remote is mandatory"
 		for loc in "${locations[@]}"; do
 			case ${loc} in
-- 
2.55.0