Fix a typo which prevented optional examples other than tiff2theora

to be built.

svn path=/trunk/theora/; revision=17883

configure.ac

@@ -578,7 +578,7 @@ if test x$HAVE_PNG = xyes; then
   BUILDABLE_EXAMPLES="$BUILDABLE_EXAMPLES png2theora\$(EXEEXT)"
 fi
 if test x$HAVE_TIFF = xyes; then
-  BUILDABLE_EXAMPLES="$BUILDABLE_EXAMPLE tiff2theora\$(EXEEXT)"
+  BUILDABLE_EXAMPLES="$BUILDABLE_EXAMPLES tiff2theora\$(EXEEXT)"
 fi
 AC_SUBST(BUILDABLE_EXAMPLES)