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/oci_conmon_linux.go b/libpod/oci_conmon_linux.go
index d9812c7e1..b13d25e22 100644
--- a/libpod/oci_conmon_linux.go
+++ b/libpod/oci_conmon_linux.go
@@ -1390,12 +1390,12 @@ func startCommandGivenSelinux(cmd *exec.Cmd) error {
 	)
 	plabel, err = selinux.CurrentLabel()
 	if err != nil {
-		return errors.Wrapf(err, "Failed to get current SELinux label")
+		return errors.Wrapf(err, "failed to get current SELinux label")
 	}
 
 	con, err = selinux.NewContext(plabel)
 	if err != nil {
-		return errors.Wrapf(err, "Failed to get new context from SELinux label")
+		return errors.Wrapf(err, "failed to get new context from SELinux label")
 	}
 
 	runtime.LockOSThread()