Remove excessive error wrapping

In case os.Open[File], os.Mkdir[All], ioutil.ReadFile and the like
fails, the error message already contains the file name and the
operation that fails, so there is no need to wrap the error with
something like "open %s failed".

While at it

 - replace a few places with os.Open, ioutil.ReadAll with
   ioutil.ReadFile.

 - replace errors.Wrapf with errors.Wrap for cases where there
   are no %-style arguments.

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

1 files changed, 2 insertions, 4 deletions

diff --git a/libpod/oci_conmon_linux.go b/libpod/oci_conmon_linux.go
index 1d4f33794..d9812c7e1 100644
--- a/libpod/oci_conmon_linux.go
+++ b/libpod/oci_conmon_linux.go
@@ -157,15 +157,13 @@ func newConmonOCIRuntime(name string, paths []string, conmonPath string, runtime
 	if err := os.MkdirAll(runtime.exitsDir, 0750); err != nil {
 		// The directory is allowed to exist
 		if !os.IsExist(err) {
-			return nil, errors.Wrapf(err, "error creating OCI runtime exit files directory %s",
-				runtime.exitsDir)
+			return nil, errors.Wrapf(err, "error creating OCI runtime exit files directory")
 		}
 	}
 	if err := os.MkdirAll(runtime.socketsDir, 0750); err != nil {
 		// The directory is allowed to exist
 		if !os.IsExist(err) {
-			return nil, errors.Wrapf(err, "error creating OCI runtime attach sockets directory %s",
-				runtime.socketsDir)
+			return nil, errors.Wrap(err, "error creating OCI runtime attach sockets directory")
 		}
 	}