pfm_verif: string concatenation efficiency cleanup

Signed-off-by: Bjoern Jacke <bjacke@samba.org>
Reviewed-by: Matthias Dieter Wallnöfer <mdw@samba.org>

diff --git a/source4/scripting/devel/pfm_verify.py b/source4/scripting/devel/pfm_verify.py
index 2b33441bdcdfc0dd51e186366cc6653b4024f666..5cbeb3c3067df0721316eadbca77272cab3be606 100755 (executable)
--- a/source4/scripting/devel/pfm_verify.py
+++ b/source4/scripting/devel/pfm_verify.py
@@ -100,9 +100,7 @@ def _drs_fetch_pfm(server, samdb, creds, lp):
     pfm_it = pfm.mappings[-1]
     assert pfm_it.id_prefix == 0
     assert pfm_it.oid.length == 21
-    s = ''
-    for x in pfm_it.oid.binary_oid:
-        s += chr(x)
+    s = "".join(chr(x) for x in pfm_it.oid.binary_oid)
     pfm_schi = ndr_unpack(drsblobs.schemaInfoBlob, s)
     assert pfm_schi.marker == 0xFF
     # remove schemaInfo element