A bug was introduced[1] that creates an invalid appregistry-server command. The lack of double quotes around the string assigned to `--registry` causes bash to interpret the `|` as a pipe rather than part of the registry string.

Background Information:
A deployment created as a result of a reconciled catalogsourceconfig defines the command that is ran in the pod below:
spec:
```
...
...
containers:
  - command:
    - appregistry-server
    - --registry=https://quay.io/cnr|marketplace_e2e --registry=https://quay.io/cnr|community-operators
    - -o
    - dynatrace,metering,svcat,mongodb,prometheus,amq-streams,clusterlogging,couchbase,descheduler,etcd,federationv2
...
...
```
 
The pod created by this deployment fails when running the command:
```
$ oc logs test-operators-68899b45db-npsnt 

time="2019-03-27T00:57:20Z" level=info msg="Using in-cluster kube client config" port=50051 type=appregistry
time="2019-03-27T00:57:20Z" level=info msg="operator source(s) specified are - [https://quay.io/cnr%7Cmarketplace_e2e --registry=https://quay.io/cnr%7Credhat-operators]" port=50051 type=appregistry
time="2019-03-27T00:57:20Z" level=info msg="package(s) specified are - federationv2,mongodb,svcat,couchbase,dynatrace,descheduler,etcd,metering,prometheus,amq-streams,clusterlogging" port=50051 type=appregistry
time="2019-03-27T00:57:20Z" level=error msg="the following error(s) occurred while parsing input - invalid source, secret specified is malformed - redhat-operators" port=50051 type=appregistry
time="2019-03-27T00:57:20Z" level=info msg="can't proceed, bailing out" port=50051 type=appregistry
time="2019-03-27T00:57:20Z" level=fatal msg="error loading manifest from remote registry - invalid source, secret specified is malformed - redhat-operators" port=50051 type=appregistry
```


Updating this command to include double quotes around the string assigned to `--registry` resolves this issue:
```
$  appregistry-server --registry="https://quay.io/cnr|redhat-operators" --registry="https://quay.io/cnr|marketplace_e2e" -o amq-streams,dynatrace,federationv2,metering,mongodb,prometheus,clusterlogging,couchbase,descheduler,etcd,svcat

time="2019-03-27T16:40:59Z" level=info msg="Using in-cluster kube client config" port=50051 type=appregistry
time="2019-03-27T16:40:59Z" level=info msg="operator source(s) specified are - [https://quay.io/cnr|redhat-operators https://quay.io/cnr|marketplace_e2e]" port=50051 type=appregistry
time="2019-03-27T16:40:59Z" level=info msg="package(s) specified are - amq-streams,dynatrace,federationv2,metering,mongodb,prometheus,clusterlogging,couchbase,descheduler,etcd,svcat" port=50051 type=appregistry
time="2019-03-27T16:40:59Z" level=info msg="input has been sanitized" port=50051 type=appregistry
time="2019-03-27T16:40:59Z" level=info msg="sources: [https://quay.io/cnr/redhat-operators https://quay.io/cnr/marketplace_e2e]" port=50051 type=appregistry
time="2019-03-27T16:40:59Z" level=info msg="packages: [amq-streams dynatrace federationv2 metering mongodb prometheus clusterlogging couchbase descheduler etcd svcat]" port=50051 type=appregistry
time="2019-03-27T16:41:00Z" level=info msg="resolved the following packages: [marketplace_e2e/dynatrace:0.2.0 marketplace_e2e/metering:0.12.0 marketplace_e2e/svcat:0.1.34 redhat-operators/amq-streams:1.0.2 marketplace_e2e/couchbase:1.0.0 marketplace_e2e/descheduler:0.0.1 marketplace_e2e/etcd:0.9.2 marketplace_e2e/federationv2:0.0.2 marketplace_e2e/mongodb:0.3.2 marketplace_e2e/prometheus:0.22.2 marketplace_e2e/clusterlogging:0.0.1]" port=50051 type=appregistry
time="2019-03-27T16:41:00Z" level=info msg="downloading repository: marketplace_e2e/dynatrace:0.2.0 from https://quay.io/cnr" port=50051 type=appregistry

```

[1] https://github.com/operator-framework/operator-marketplace/pull/139/files#diff-ed7d7c72ad9b4816a7ab9a3482c126a2R257