SVN_SILENT: spelling/grammar: use either "'re" or "are", but not both.

(As all other strings in the file use "'re", I have changed to "'re".)

svn path=/branches/KDE/3.5/kdegraphics/kpdf/; revision=646187

configure.in.bot

@@ -8,7 +8,7 @@ fi
 if test x$FREETYPE_VERSION != x; then
   if test $FREETYPE_VERSION -lt 9008003; then
     echo ""
-    echo "You're are using freetype older than 2.1.10, it is not mandatory"
+    echo "You're using freetype older than 2.1.10, it is not mandatory"
     echo "to use 2.1.10 but kpdf improves its rendering in some pdf with it"
     echo ""
   fi