t/t6132-pathspec-exclude.sh: use the $( ... ) construct for command substitution

diff --git a/t/t5700-clone-reference.sh b/t/t5700-clone-reference.sh
index dfa1bf79c5690289baeddd4498cb4c84dbd19bbe..4320082b1b8fe709e9462f84d15fec63c54a94d4 100755 (executable)
--- a/t/t5700-clone-reference.sh
+++ b/t/t5700-clone-reference.sh
@@ -6,7 +6,7 @@
 test_description='test clone --reference'
 . ./test-lib.sh
 
-base_dir=`pwd`
+base_dir=$(pwd)
 
 U=$base_dir/UPLOAD_LOG