No need to set the session log offset value if it's 0

nw/core/project.py

@@ -1121,8 +1121,10 @@ class NWProject():
         with open(sessionFile, mode="a+", encoding="utf8") as outFile:
             if not isFile:
                 # It's a new file, so add a header
-                outFile.write("# Initial: %d\n# %-17s  %-19s  %8s  %8s\n" % (
-                    self.lastWCount, "Start Time", "End Time", "Novel", "Notes"
+                if self.lastWCount > 0:
+                    outFile.write("# Offset %d\n" % self.lastWCount)
+                outFile.write("# %-17s  %-19s  %8s  %8s\n" % (
+                    "Start Time", "End Time", "Novel", "Notes"
                 ))
 
             outFile.write("%-19s  %-19s  %8d  %8d\n" % (

nw/gui/sessionlog.py

@@ -401,8 +401,8 @@ class GuiSessionLog(QDialog):
             with open(logFile, mode="r", encoding="utf8") as inFile:
                 for inLine in inFile:
                     if inLine.startswith("#"):
-                        if inLine.startswith("# Initial:"):
-                            self.wordOffset = int(inLine[11:].strip())
+                        if inLine.startswith("# Offset"):
+                            self.wordOffset = int(inLine[9:].strip())
                             logger.verbose(
                                 "Initial word count when log was started is %d" % self.wordOffset
                             )