cargo.eclass: make regex both readonly and local

Signed-off-by: Georgy Yakovlev <gyakovlev@gentoo.org>

diff --git a/eclass/cargo.eclass b/eclass/cargo.eclass
index 9a583307a6abe114316f0ee34b4669b219617035..79d8863017d1c9488ecdddd83e9cf7a51ac1cbab 100644 (file)
--- a/eclass/cargo.eclass
+++ b/eclass/cargo.eclass
@@ -39,7 +39,7 @@ ECARGO_VENDOR="${ECARGO_HOME}/gentoo"
 # @DESCRIPTION:
 # Generates the URIs to put in SRC_URI to help fetch dependencies.
 cargo_crate_uris() {
-       readonly regex='^(.*)-([0-9]+\.[0-9]+\.[0-9]+.*)$'
+       local -r regex='^(.*)-([0-9]+\.[0-9]+\.[0-9]+.*)$'
        local crate
        for crate in "$@"; do
                local name version url