Prevent <center> and <div> inside brief descriptions to avoid broken XHTML output

Author: doxygen

src/commentscan.l

@@ -934,7 +934,9 @@ HR        [hH][rR]
 PARA      [pP][aA][rR][aA]
 CODE      [cC][oO][dD][eE]
 CAPTION   [cC][aA][pP][tT][iI][oO][nN]
-DETAILEDHTML {PRE}|{UL}|{TABLE}|{OL}|{DL}|{P}|[Hh][1-6]|{IMG}|{HR}|{PARA}
+CENTER    [cC][eE][nN][tT][eE][rR]
+DIV       [dD][iI][vV]
+DETAILEDHTML {CENTER}|{DIV}|{PRE}|{UL}|{TABLE}|{OL}|{DL}|{P}|[Hh][1-6]|{IMG}|{HR}|{PARA}
 DETAILEDHTMLOPT {CODE}
 BN        [ \t\n\r]
 BL        [ \t\r]*"\n"