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>

2 files changed, 2 insertions, 2 deletions

diff --git a/cmd/podman/images/history.go b/cmd/podman/images/history.go
index f3a41f6b9..30abf0ada 100644
--- a/cmd/podman/images/history.go
+++ b/cmd/podman/images/history.go
@@ -132,7 +132,7 @@ func history(cmd *cobra.Command, args []string) error {
 	w := tabwriter.NewWriter(os.Stdout, 8, 2, 2, ' ', 0)
 	err = tmpl.Execute(w, hr)
 	if err != nil {
-		fmt.Fprintln(os.Stderr, errors.Wrapf(err, "Failed to print report"))
+		fmt.Fprintln(os.Stderr, errors.Wrapf(err, "failed to print report"))
 	}
 	w.Flush()
 	return nil
diff --git a/cmd/podman/system/connection/add.go b/cmd/podman/system/connection/add.go
index 8b9ab6dbb..df036af1a 100644
--- a/cmd/podman/system/connection/add.go
+++ b/cmd/podman/system/connection/add.go
@@ -166,7 +166,7 @@ func getUDS(cmd *cobra.Command, uri *url.URL) (string, error) {
 		value := cmd.Flag("identity").Value.String()
 		auth, err := terminal.PublicKey(value, []byte(passwd))
 		if err != nil {
-			return "", errors.Wrapf(err, "Failed to read identity %q", value)
+			return "", errors.Wrapf(err, "failed to read identity %q", value)
 		}
 		authMethods = append(authMethods, auth)
 	}