git-r3.eclass: Allow *_LIVE* to unset ebuild-defined vars

diff --git a/eclass/git-r3.eclass b/eclass/git-r3.eclass
index d202e3383a44940b8c29ad6fb852666ba4731ea8..b7a93338951c64cee9c55e1f3e6f132de372d6fe 100644 (file)
--- a/eclass/git-r3.eclass
+++ b/eclass/git-r3.eclass
@@ -240,17 +240,17 @@ _git-r3_env_setup() {
        esc_pn=${PN//[-+]/_}
 
        livevar=${esc_pn}_LIVE_REPO
-       EGIT_REPO_URI=${!livevar:-${EGIT_REPO_URI}}
+       EGIT_REPO_URI=${!livevar-${EGIT_REPO_URI}}
        [[ ${!livevar} ]] \
                && ewarn "Using ${livevar}, no support will be provided"
 
        livevar=${esc_pn}_LIVE_BRANCH
-       EGIT_BRANCH=${!livevar:-${EGIT_BRANCH}}
+       EGIT_BRANCH=${!livevar-${EGIT_BRANCH}}
        [[ ${!livevar} ]] \
                && ewarn "Using ${livevar}, no support will be provided"
 
        livevar=${esc_pn}_LIVE_COMMIT
-       EGIT_COMMIT=${!livevar:-${EGIT_COMMIT}}
+       EGIT_COMMIT=${!livevar-${EGIT_COMMIT}}
        [[ ${!livevar} ]] \
                && ewarn "Using ${livevar}, no support will be provided"