Fix trailing whitespace

src/server/idle.c

@@ -26,7 +26,7 @@
  *  ---
  *
  *  idle.c: Stamps out idle players.  Runs at low priority
- * 
+ *
  *  Known contributors to this file:
  *     Dave Pare, 1994
  */

src/server/main.c

@@ -26,7 +26,7 @@
  *  ---
  *
  *  main.c: Empire Server main, startup and shutdown
- * 
+ *
  *  Known contributors to this file:
  *     Dave Pare, 1994
  *     Steve McClure, 1996, 1998

src/server/marketup.c

@@ -26,7 +26,7 @@
  *  ---
  *
  *  marketup.c: Market updater thread
- * 
+ *
  *  Known contributors to this file:
  *     Steve McClure, 1996
  *     Markus Armbruster, 2007

src/server/shutdown.c

@@ -26,7 +26,7 @@
  *  ---
  *
  *  shutdown.c: Shuts down server.  Runs at low priority.
- * 
+ *
  *  Known contributors to this file:
  *     Ken Stevens, 1995
  *     Markus Armbruster, 2007-2008

src/server/update.c

@@ -26,7 +26,7 @@
  *  ---
  *
  *  update.c: Update scheduler
- * 
+ *
  *  Known contributors to this file:
  *     Dave Pare, 1994
  *     Steve McClure, 1996
@@ -221,9 +221,9 @@ int
 run_hook(char *cmd, char *name)
 {
     int status;
-    
+
     fflush(NULL);
-    
+
     status = system(cmd);
     if (status == 0)
 	;			/* successful exit */