remotefilelog: fix various minor py3 problems

# skip-blame b prefixes and pycompat.long, nothing remotely interesting

Differential Revision: https://phab.mercurial-scm.org/D5223

hgext/remotefilelog/basepack.py

@@ -512,8 +512,8 b' class mutablebasepack(versionmixin):'
         self.idxfp.write(struct.pack('!BB', self.VERSION, config))
 
 class indexparams(object):
-    __slots__ = ('fanoutprefix', 'fanoutstruct', 'fanoutcount', 'fanoutsize',
-                 'indexstart')
+    __slots__ = (r'fanoutprefix', r'fanoutstruct', r'fanoutcount',
+                 r'fanoutsize', r'indexstart')
 
     def __init__(self, prefixsize, version):
         self.fanoutprefix = prefixsize

hgext/remotefilelog/repack.py

@@ -753,8 +753,8 b' class repackledger(object):'
 class repackentry(object):
     """Simple class representing a single revision entry in the repackledger.
     """
-    __slots__ = ['filename', 'node', 'datasource', 'historysource',
-                 'datarepacked', 'historyrepacked', 'gced']
+    __slots__ = (r'filename', r'node', r'datasource', r'historysource',
+                 r'datarepacked', r'historyrepacked', r'gced')
     def __init__(self, filename, node):
         self.filename = filename
         self.node = node

hgext/remotefilelog/shallowutil.py

@@ -158,8 +158,8 b' def _buildpackmeta(metadict):'
     return metabuf
 
 _metaitemtypes = {
-    constants.METAKEYFLAG: (int, long),
-    constants.METAKEYSIZE: (int, long),
+    constants.METAKEYFLAG: (int, pycompat.long),
+    constants.METAKEYSIZE: (int, pycompat.long),
 }
 
 def buildpackmeta(metadict):