CAM: Avoid adding trailing space to all M6 lines.

The Fanuc post processor add a trailing space to all M6 lines.
This make it problematic to write test for the generated output,
when compiled with the automatic policy enforcer on github
removing trialing space from the expected output.  Avoid the
problem by removing the trailing space from the generated
output.

src/Mod/CAM/Path/Post/scripts/fanuc_post.py

@@ -437,6 +437,7 @@ def parse(pathobj):
         for index, c in enumerate(commands):
 
             outstring = []
+            outsuffix = []
             command = c.Name
             if index + 1 == len(commands):
                 nextcommand = ""
@@ -622,8 +623,7 @@ def parse(pathobj):
 
                 # add height offset
                 if USE_TLO:
-                    tool_height = "\nG43 H" + str(int(c.Parameters["T"]))
-                    outstring.append(tool_height)
+                    outsuffix.append("G43 H" + str(int(c.Parameters["T"]))
 
             if command == "message":
                 if OUTPUT_COMMENTS is False:
@@ -637,9 +637,11 @@ def parse(pathobj):
                     outstring.insert(0, (linenumber()))
 
                 # append the line to the final output
-                for w in outstring:
-                    out += w.upper() + COMMAND_SPACE
+                out += COMMAND_SPACE.join(outstring).upper()
                 out = out.strip() + "\n"
+            if len(outsuffix) >= 1:
+                for line in outsuffix:
+                    out += linenumber() + line + "\n"
 
         return out