Lowercase some errors

This commit is courtesy of

```
for f in $(git ls-files *.go | grep -v ^vendor/); do \
	sed -i 's/\(errors\..*\)"Error /\1"error /' $f;
done

for f in $(git ls-files *.go | grep -v ^vendor/); do \
	sed -i 's/\(errors\..*\)"Failed to /\1"failed to /' $f;
done

```

etc.

Self-reviewed using `git diff --word-diff`, found no issues.

Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/libpod/runtime_ctr.go b/libpod/runtime_ctr.go
index ee179ff2c..abb97293f 100644
--- a/libpod/runtime_ctr.go
+++ b/libpod/runtime_ctr.go
@@ -620,7 +620,7 @@ func (r *Runtime) evictContainer(ctx context.Context, idOrName string, removeVol
 
 	id, err := r.state.LookupContainerID(idOrName)
 	if err != nil {
-		return "", errors.Wrapf(err, "Failed to find container %q in state", idOrName)
+		return "", errors.Wrapf(err, "failed to find container %q in state", idOrName)
 	}
 
 	// Begin by trying a normal removal. Valid containers will be removed normally.
@@ -650,7 +650,7 @@ func (r *Runtime) evictContainer(ctx context.Context, idOrName string, removeVol
 		return id, err
 	}
 	if !exists {
-		return id, errors.Wrapf(err, "Failed to find container ID %q for eviction", id)
+		return id, errors.Wrapf(err, "failed to find container ID %q for eviction", id)
 	}
 
 	// Re-create a container struct for removal purposes