Export variable in resolver system test

Variable assignment when calling subroutines might not be portable.
Notably, it doesn't work with FreeBSD shell, where the value of HOME
would be ignored in this case.

Since the commands are already executed in a subshell, export the HOME
variable to ensure it is properly handled in all shells.

diff --git a/bin/tests/system/resolver/tests.sh b/bin/tests/system/resolver/tests.sh
index c4461971263b26d7cf8c931db0e22054a3526b7f..7ada50fe183c7618cad67906512caaa72c3b8430 100755 (executable)
--- a/bin/tests/system/resolver/tests.sh
+++ b/bin/tests/system/resolver/tests.sh
@@ -505,9 +505,21 @@ n=$((n + 1))
 echo_i "check that '-t aaaa' in .digrc does not have unexpected side effects ($n)"
 ret=0
 echo "-t aaaa" >.digrc
-(HOME="$(pwd)" dig_with_opts @10.53.0.4 . >dig.out.1.${n}) || ret=1
-(HOME="$(pwd)" dig_with_opts @10.53.0.4 . A >dig.out.2.${n}) || ret=1
-(HOME="$(pwd)" dig_with_opts @10.53.0.4 -x 127.0.0.1 >dig.out.3.${n}) || ret=1
+(
+  HOME="$(pwd)"
+  export HOME
+  dig_with_opts @10.53.0.4 . >dig.out.1.${n}
+) || ret=1
+(
+  HOME="$(pwd)"
+  export HOME
+  dig_with_opts @10.53.0.4 . A >dig.out.2.${n}
+) || ret=1
+(
+  HOME="$(pwd)"
+  export HOME
+  dig_with_opts @10.53.0.4 -x 127.0.0.1 >dig.out.3.${n}
+) || ret=1
 grep ';\..*IN.*AAAA$' dig.out.1.${n} >/dev/null || ret=1
 grep ';\..*IN.*A$' dig.out.2.${n} >/dev/null || ret=1
 grep 'extra type option' dig.out.2.${n} >/dev/null && ret=1