git-p4: ensure every comment has a single #

PEP8 recommends that every comment should begin with a single '#'
character.

This guideline is described here:
https://www.python.org/dev/peps/pep-0008/#comments

Signed-off-by: Joel Holdsworth <jholdsworth@nvidia.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

git-p4.py

@@ -895,7 +895,7 @@ def branchExists(ref):
 def extractLogMessageFromGitCommit(commit):
     logMessage = ""
 
-    ## fixme: title is first line of commit, not 1st paragraph.
+    # fixme: title is first line of commit, not 1st paragraph.
     foundTitle = False
     for log in read_pipe_lines(["git", "cat-file", "commit", commit]):
         if not foundTitle:
@@ -3485,7 +3485,7 @@ class P4Sync(Command, P4UserMap):
                     continue
                 source = paths[0]
                 destination = paths[1]
-                ## HACK
+                # HACK
                 if p4PathStartsWith(source, self.depotPaths[0]) and p4PathStartsWith(destination, self.depotPaths[0]):
                     source = source[len(self.depotPaths[0]):-4]
                     destination = destination[len(self.depotPaths[0]):-4]
@@ -3644,7 +3644,7 @@ class P4Sync(Command, P4UserMap):
                 if self.detectBranches:
                     branches = self.splitFilesIntoBranches(description)
                     for branch in branches.keys():
-                        ## HACK  --hwn
+                        # HACK  --hwn
                         branchPrefix = self.depotPaths[0] + branch + "/"
                         self.branchPrefixes = [branchPrefix]
 
@@ -4035,7 +4035,7 @@ class P4Sync(Command, P4UserMap):
             self.getLabels()
 
         if self.detectBranches:
-            ## FIXME - what's a P4 projectName ?
+            # FIXME - what's a P4 projectName ?
             self.projectName = self.guessProjectName()
 
             if self.hasOrigin:
@@ -4048,7 +4048,7 @@ class P4Sync(Command, P4UserMap):
             for b in self.p4BranchesInGit:
                 if b != "master":
 
-                    ## FIXME
+                    # FIXME
                     b = b[len(self.projectName):]
                 self.createdBranches.add(b)
 
@@ -4154,7 +4154,7 @@ class P4Clone(P4Sync):
         self.cloneBare = False
 
     def defaultDestination(self, args):
-        ## TODO: use common prefix of args?
+        # TODO: use common prefix of args?
         depotPath = args[0]
         depotDir = re.sub("(@[^@]*)$", "", depotPath)
         depotDir = re.sub("(#[^#]*)$", "", depotDir)