Update comment about 64-bit arches

build-package.sh

@@ -29,7 +29,7 @@ test -f $HOME/.termuxrc && . $HOME/.termuxrc
 if [ ! -d "$NDK" ]; then echo 'ERROR: $NDK not defined as pointing at a directory - define it pointing at a android NDK installation!'; exit 1; fi
 : ${TERMUX_MAKE_PROCESSES:='4'}
 : ${TERMUX_TOPDIR:="$HOME/termux"}
-: ${TERMUX_ARCH:="arm"} # (arm|aarch64|i686|x86_64) - the 64 bit variants do not work yet
+: ${TERMUX_ARCH:="arm"} # (arm|aarch64|i686|x86_64) - the x86_64 arch is not yet used or tested.
 TERMUX_ARCH_BITS="32"
 if [ "x86_64" = $TERMUX_ARCH -o "aarch64" = $TERMUX_ARCH ]; then
 	TERMUX_ARCH_BITS="64"