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, 1 insertions, 1 deletions

diff --git a/pkg/api/handlers/utils/errors.go b/pkg/api/handlers/utils/errors.go
index bf9b18960..fc77b8ec0 100644
--- a/pkg/api/handlers/utils/errors.go
+++ b/pkg/api/handlers/utils/errors.go
@@ -90,7 +90,7 @@ func InternalServerError(w http.ResponseWriter, err error) {
 }
 
 func BadRequest(w http.ResponseWriter, key string, value string, err error) {
-	e := errors.Wrapf(err, "Failed to parse query parameter '%s': %q", key, value)
+	e := errors.Wrapf(err, "failed to parse query parameter '%s': %q", key, value)
 	Error(w, http.StatusText(http.StatusBadRequest), http.StatusBadRequest, e)
 }