Index logs/screen-n-api-meta.txt for logstash queries

We are seeing a race failure in check-tempest-dsvm-postgres-full jobs
where the error message shows up in the screen-n-api-meta log but we can
only get at it from screen-n-api logs (or console). We should index on
the screen-n-api-meta log so we can better filter the query.

Related-Bug: #921858

Change-Id: I1701ac83b2643d819245a7cdbbfb56cc4af12f5b

modules/openstack_project/files/logstash/jenkins-log-client.yaml

@@ -90,6 +90,10 @@ source-files:
     tags:
       - screen
       - oslofmt
+  - name: logs/screen-n-api-meta.txt
+    tags:
+      - screen
+      - oslofmt
   - name: logs/screen-n-cond.txt
     tags:
       - screen
@@ -204,6 +208,10 @@ source-files:
     tags:
       - screen
       - oslofmt
+  - name: logs/new/screen-n-api-meta.txt
+    tags:
+      - screen
+      - oslofmt
     job-filter: '.*grenade.*'
   - name: logs/new/screen-n-cond.txt
     tags:
@@ -280,6 +288,10 @@ source-files:
     tags:
       - screen
       - oslofmt
+  - name: logs/old/screen-n-api-meta.txt
+    tags:
+      - screen
+      - oslofmt
     job-filter: '.*grenade.*'
   - name: logs/old/screen-n-cond.txt
     tags: