ceph-disk: cast output of subprocess.Popen() to str()

Cast output of subprocess.Popen() to str() to be able to use
str.split() and str.splitlines() without warnings from pylint.

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
(cherry picked from commit 87691dc46edfba11c370592dbb533772190be4b2)

1 files changed, 3 insertions, 3 deletions

diff --git a/src/ceph-disk b/src/ceph-disk
index 7de946e2985..7804021580a 100755
--- a/src/ceph-disk
+++ b/src/ceph-disk
@@ -373,7 +373,7 @@ def get_conf(cluster, variable):
         return None
     elif ret != 0:
         raise Error('getting variable from configuration failed')
-    value = out.split('\n', 1)[0]
+    value = str(out).split('\n', 1)[0]
     # don't differentiate between "var=" and no var set
     if not value:
         return None
@@ -406,7 +406,7 @@ def get_conf_with_default(cluster, variable):
             e,
             )
 
-    value = out.split('\n', 1)[0]
+    value = str(out).split('\n', 1)[0]
     return value
 
 
@@ -552,7 +552,7 @@ def get_free_partition_index(dev):
 
     if not lines:
         raise Error('parted failed to output anything')
-    lines = lines.splitlines(True)
+    lines = str(lines).splitlines(True)
 
     if lines[0] not in ['CHS;\n', 'CYL;\n', 'BYT;\n']:
         raise Error('weird parted units', lines[0])