termux-tools: do not start login shell if not running on terminal

Fixes execution of commands via non-interactive shell with OpenSSH.
Issue https://github.com/termux/termux-packages/issues/3620.

packages/termux-tools/build.sh

@@ -1,7 +1,7 @@
 TERMUX_PKG_HOMEPAGE=https://termux.com/
 TERMUX_PKG_DESCRIPTION="Basic system tools for Termux"
 TERMUX_PKG_LICENSE="GPL-3.0"
-TERMUX_PKG_VERSION=0.61
+TERMUX_PKG_VERSION=0.62
 TERMUX_PKG_PLATFORM_INDEPENDENT=yes
 TERMUX_PKG_ESSENTIAL=yes
 TERMUX_PKG_DEPENDS="termux-am"

packages/termux-tools/login

@@ -20,4 +20,8 @@ if [ -f $PREFIX/lib/libtermux-exec.so ]; then
 	$SHELL -c "busybox true" > /dev/null 2>&1 || unset LD_PRELOAD
 fi
 
-exec "$SHELL" -l "$@"
+if [ -n "$TERM" ]; then
+	exec "$SHELL" -l "$@"
+else
+	exec "$SHELL" "$@"
+fi