fix: typo (#72)

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Source-Link: googleapis/synthtool@082e1ca

.kokoro/build.sh

@@ -37,7 +37,7 @@ retry_with_backoff 3 10 \
     -Dgcloud.download.skip=true \
     -T 1C
 
-# if GOOGLE_APPLICATION_CREDIENTIALS is specified as a relative path prepend Kokoro root directory onto it
+# if GOOGLE_APPLICATION_CREDENTIALS is specified as a relative path, prepend Kokoro root directory onto it
 if [[ ! -z "${GOOGLE_APPLICATION_CREDENTIALS}" && "${GOOGLE_APPLICATION_CREDENTIALS}" != /* ]]; then
     export GOOGLE_APPLICATION_CREDENTIALS=$(realpath ${KOKORO_GFILE_DIR}/${GOOGLE_APPLICATION_CREDENTIALS})
 fi

synth.metadata

@@ -4,7 +4,7 @@
       "git": {
         "name": ".",
         "remote": "https://github.com/googleapis/java-channel.git",
-        "sha": "93fde137961babee0b099e2e8d8ebcb1c2b1d5c9"
+        "sha": "9b3832351544791c9cd1f50765ea93bf1336b962"
       }
     },
     {
@@ -19,7 +19,7 @@
       "git": {
         "name": "synthtool",
         "remote": "https://github.com/googleapis/synthtool.git",
-        "sha": "1f5e6bc8dc8e3661ee550905fc070e55e1b6cea1"
+        "sha": "082e1ca0863b13ada8594fe91845380765da5b70"
       }
     }
   ],