dash: Use a mirror for download source

packages/dash/build.sh

@@ -2,7 +2,10 @@ TERMUX_PKG_HOMEPAGE=http://gondor.apana.org.au/~herbert/dash/
 TERMUX_PKG_DESCRIPTION="Small POSIX-compliant implementation of /bin/sh"
 TERMUX_PKG_ESSENTIAL=yes
 TERMUX_PKG_VERSION=0.5.9.1
-TERMUX_PKG_SRCURL=http://gondor.apana.org.au/~herbert/dash/files/dash-${TERMUX_PKG_VERSION}.tar.gz
+TERMUX_PKG_SHA256=5ecd5bea72a93ed10eb15a1be9951dd51b52e5da1d4a7ae020efd9826b49e659
+# Use a mirror as upstream has hade some issues:
+# TERMUX_PKG_SRCURL=http://gondor.apana.org.au/~herbert/dash/files/dash-${TERMUX_PKG_VERSION}.tar.gz
+TERMUX_PKG_SRCURL=https://dl.bintray.com/termux/upstream/dash-${TERMUX_PKG_VERSION}.tar.gz
 
 termux_step_post_make_install () {
 	# Symlink sh -> dash