Correct copy/paste error in postroll commercial detection

Corrects an incorrect variable use that was missed when copying a
similar block of code added in 9f5ee51.

Fixes #10120
Refs #6889

Signed-off-by: Raymond Wagner <rwagner@mythtv.org>
(cherry picked from commit 39c6183)

Author: tms13

mythtv/programs/mythcommflag/PrePostRollFlagger.cpp

@@ -394,10 +394,11 @@ void PrePostRollFlagger::GetCommercialBreakList(frm_dir_map_t &marks)
             end = closestAfterPre;
         else
             end = closestBeforePre;
-    }else if(closestBeforePre)
+    }
+    else if(closestBeforePre)
         end = closestBeforePre;
     else if(closestAfterPre)
-        end  = closestAfterPre;
+        end = closestAfterPre;
     else
         end = preRoll;
 
@@ -419,7 +420,7 @@ void PrePostRollFlagger::GetCommercialBreakList(frm_dir_map_t &marks)
     else if(closestBeforePost)
         start = closestBeforePost;
     else if(closestAfterPost)
-        start  = closestAfterPre;
+        start = closestAfterPost;
     else if(postRoll)
         start = myTotalFrames - postRoll;