fixup: trailing newlines; should be squashed into 3a17bd4

Signed-off-by: Angel Misevski <amisevsk@redhat.com>

pkg/library/flatten/testdata/general/fail-nicely-when-no-http-client-provided_id.yaml

@@ -8,4 +8,4 @@ input:
           id: test/plugin
 
 output:
-  errRegexp: "cannot resolve resources by id: no HTTP client provided"
+  errRegexp: "cannot resolve resources by id: no HTTP client provided"

pkg/library/flatten/testdata/general/fail-nicely-when-no-http-client-provided_uri.yaml

@@ -8,4 +8,4 @@ input:
           uri: https://test-repo.io/my-plugino
 
 output:
-  errRegexp: "cannot resolve resources by URI: no HTTP client provided"
+  errRegexp: "cannot resolve resources by URI: no HTTP client provided"

pkg/library/flatten/testdata/general/fail-nicely-when-no-k8s-client-provided.yaml

@@ -10,4 +10,4 @@ input:
             namespace: test-ns
 
 output:
-  errRegexp: "cannot resolve resources by kubernetes reference: no kubernetes client provided"
+  errRegexp: "cannot resolve resources by kubernetes reference: no kubernetes client provided"

pkg/library/flatten/testdata/general/fail-nicely-when-no-namespace.yaml

@@ -9,4 +9,4 @@ input:
             name: test-plugin-a
 
 output:
-  errRegexp: "specifies a kubernetes reference without namespace and a default is not provided"
+  errRegexp: "specifies a kubernetes reference without namespace and a default is not provided"

pkg/library/flatten/testdata/general/fail-nicely-when-no-registry-url.yaml

@@ -8,4 +8,4 @@ input:
           id: test/plugin
 
 output:
-  errRegexp: "plugin test-plugin does not specify a registryUrl and no internal registry is configured"
+  errRegexp: "plugin test-plugin does not specify a registryUrl and no internal registry is configured"