wg-quick: use printf -v instead of namerefs for bash 4.2

I'm not happy about this.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

diff --git a/src/wg-quick.bash b/src/wg-quick.bash
index 6edcd3a434206addf49f7247bb17f147b45f2d09..243f35d337f4bc97e40d78c473982471eacec49a 100755 (executable)
--- a/src/wg-quick.bash
+++ b/src/wg-quick.bash
@@ -54,10 +54,9 @@ parse_options() {
 }
 
 read_bool() {
-       local -n out="$1"
        case "$2" in
-       true) out=1 ;;
-       false) out=0 ;;
+       true) printf -v "$1" 1 ;;
+       false) printf -v "$1" 0 ;;
        *) die "\`$2' is neither true nor false"
        esac
 }