build: update common.sh (#3707)

Fixes #1502
Source-Link: googleapis/synthtool@26ea255
Post-Processor: gcr.io/cloud-devrel-public-resources/owlbot-java:latest@sha256:7a9a7eb50ca2af5bfffab3abd2f38d408735c990a74bacf9b7fde2af0a086a0b

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: gcf-owl-bot[bot]

.github/.OwlBot.lock.yaml

@@ -13,5 +13,5 @@
 # limitations under the License.
 docker:
   image: gcr.io/cloud-devrel-public-resources/owlbot-java:latest
-  digest: sha256:fc52b202aa298a50a12c64efd04fea3884d867947effe2fa85382a246c09e813
-# created: 2022-04-06T16:30:03.627422514Z
+  digest: sha256:7a9a7eb50ca2af5bfffab3abd2f38d408735c990a74bacf9b7fde2af0a086a0b
+# created: 2022-08-01T15:27:14.757266067Z

.kokoro/common.sh

@@ -55,4 +55,6 @@ function retry_with_backoff {
 ## Helper functionss
 function now() { date +"%Y-%m-%d %H:%M:%S" | tr -d '\n'; }
 function msg() { println "$*" >&2; }
-function println() { printf '%s\n' "$(now) $*"; }
+function println() { printf '%s\n' "$(now) $*"; }
+
+## Helper comment to trigger updated repo dependency release