Fix //scripts/release:release_test

Fixes #341

--
MOS_MIGRATED_REVID=99458831
diff --git a/scripts/release/release_test.sh b/scripts/release/release_test.sh
index dc3b2c5..4c26068 100755
--- a/scripts/release/release_test.sh
+++ b/scripts/release/release_test.sh
@@ -195,21 +195,21 @@
   local header='Release v1 ('$(date +%Y-%m-%d)')
 
 Baseline: 1170dc6
-   + 0540fde: Extract version numbers that look like "..._1.2.3_..."
-              from BUILD_EMBED_LABEL into Info.plist.
+   + 0540fde: Extract version numbers that look like
+              "..._1.2.3_..." from BUILD_EMBED_LABEL into Info.plist.
 
 '
   assert_equals "${header}Test replacement" "$(cat ${TEST_log})"
   push
 
   # Test creating a second candidate
-  echo "#!/usr/bin/true" >${EDITOR}
+  echo "#!$(which true)" >${EDITOR}
   create v1 1170dc6 0540fde cef25c4
   header='Release v1 ('$(date +%Y-%m-%d)')
 
 Baseline: 1170dc6
-   + 0540fde: Extract version numbers that look like "..._1.2.3_..."
-              from BUILD_EMBED_LABEL into Info.plist.
+   + 0540fde: Extract version numbers that look like
+              "..._1.2.3_..." from BUILD_EMBED_LABEL into Info.plist.
    + cef25c4: RELNOTES: Attribute error messages related to Android
               resources are easier to understand now.