util: Use util-common for strndup in pacsort and pactree

This small refactor reduces the number of replications of the local
imeplementation of strndup.

Signed-off-by: Will Miles <wmiles@sgl.com>
Signed-off-by: Allan McRae <allan@archlinux.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/util/util-common.c b/src/util/util-common.c
new file mode 120000
index 00000000..a2f6c508
--- /dev/null
+++ b/src/util/util-common.c
@@ -0,0 +1 @@
+../common/util-common.c
\ No newline at end of file