[cleanup] Remove trailing whitespace

doc/doxygen/Doxystyle

@@ -13,7 +13,7 @@ RECURSIVE              = YES
 FILE_PATTERNS          = *.hh \
                          *.cc
 INPUT                  =
-EXCLUDE                = 
+EXCLUDE                =
 
 EXCLUDE_PATTERNS       = */.svn/* */test/*
 
@@ -164,15 +164,15 @@ DOT_CLEANUP            = NO
 #                                           (christi 16. Jan 2006) #
 ####################################################################
 
-# The HTML_HEADER tag can be used to specify a personal HTML header for 
-# each generated HTML page. If it is left blank doxygen will generate a 
+# The HTML_HEADER tag can be used to specify a personal HTML header for
+# each generated HTML page. If it is left blank doxygen will generate a
 # standard header.
 
 @DUNEWEB_TRUE@HTML_HEADER            = doxy-header.html
 @DUNEWEB_FALSE@HTML_HEADER            =
 
-# The HTML_FOOTER tag can be used to specify a personal HTML footer for 
-# each generated HTML page. If it is left blank doxygen will generate a 
+# The HTML_FOOTER tag can be used to specify a personal HTML footer for
+# each generated HTML page. If it is left blank doxygen will generate a
 # standard footer.
 
 @DUNEWEB_TRUE@HTML_FOOTER            = doxy-footer.html
@@ -203,9 +203,9 @@ GENERATE_TODOLIST      = YES
 GENERATE_TESTLIST      = YES
 GENERATE_BUGLIST       = YES
 GENERATE_DEPRECATEDLIST= YES
-ENABLED_SECTIONS       = 
+ENABLED_SECTIONS       =
 MAX_INITIALIZER_LINES  = 30
 SHOW_FILES             = YES
 SHOW_NAMESPACES        = YES
-FILE_VERSION_FILTER    = 
-LAYOUT_FILE            = 
+FILE_VERSION_FILTER    =
+LAYOUT_FILE            =