Addressing pylint src comments

src/python/WMCore/Storage/Backends/GFAL2Impl.py

@@ -37,9 +37,9 @@ def createFinalPFN(self, pfn):
         if pfn.startswith('file:'):
             return pfn
         elif os.path.isfile(pfn):
-            return "file://%s" % os.path.abspath(pfn)
+            return "file://{}".format(os.path.abspath(pfn))
         elif pfn.startswith('/'):
-            return "file://%s" % os.path.abspath(pfn)
+            return "file://{}".format(os.path.abspath(pfn))
         return pfn
 
     def createSourceName(self, protocol, pfn):
@@ -74,7 +74,7 @@ def createRemoveFileCommand(self, pfn):
                Command is interrupted if time expires before it finishes
         """
         if os.path.isfile(pfn):
-            return "/bin/rm -f %s" % os.path.abspath(pfn)
+            return "/bin/rm -f {}".format(os.path.abspath(pfn))
         else:
             return self.removeCommand.format(self.createFinalPFN(pfn))
 
@@ -123,9 +123,7 @@ def createStageOutCommand(self, sourcePFN, targetPFN, options=None, checksums=No
         :checksums: dict, collect checksums according to the algorithms saved as keys
         """
 
-
         copyCommandDict = self.buildCopyCommandDict(sourcePFN, targetPFN, options, checksums)
-        #copyCommand = self.copyCommand % copyCommandDict
         copyCommand = self.copyCommand.format_map(copyCommandDict)
         result = "#!/bin/bash\n" + copyCommand
 
@@ -155,7 +153,7 @@ def createDebuggingCommand(self, sourcePFN, targetPFN, options=None, checksums=N
         """
 
         copyCommandDict = self.buildCopyCommandDict(sourcePFN, targetPFN, options, checksums)
-        copyCommand = self.copyCommand % copyCommandDict
+        copyCommand = self.copyCommand.format_map(copyCommandDict)
 
         result = "#!/bin/bash\n"
         result += """
@@ -205,7 +203,7 @@ def removeFile(self, pfnToRemove):
         CleanUp pfn provided
         """
         if os.path.isfile(pfnToRemove):
-            command = "/bin/rm -f %s" % os.path.abspath(pfnToRemove)
+            command = "/bin/rm -f {}".format(os.path.abspath(pfnToRemove))
         else:
             command = self.removeCommand.format(self.createFinalPFN(pfnToRemove))
         self.executeCommand(command)