hunspell-en-us: Fix build to always include files

Closes #838.

packages/hunspell-en-us/build.sh

@@ -1,6 +1,7 @@
 TERMUX_PKG_HOMEPAGE=https://hunspell.github.io
 TERMUX_PKG_DESCRIPTION="American english dictionary for hunspell"
 TERMUX_PKG_VERSION=2017.03.03
+TERMUX_PKG_REVISION=1
 TERMUX_PKG_PLATFORM_INDEPENDENT=yes
 
 termux_step_make_install () {
@@ -15,4 +16,5 @@ termux_step_make_install () {
 	termux_download https://cgit.freedesktop.org/libreoffice/dictionaries/plain/en/en_US.dic \
 			$TERMUX_PREFIX/share/hunspell/en_US.dic \
 			8cbce08a66fcd4dd32eadcff2def2653b94863c2e2be1851c6e612558153b076
+	touch $TERMUX_PREFIX/share/hunspell/en_US.{aff,dic}
 }