libtool: Fix dependencies on sed and grep

See #695 and #1740.

packages/libtool/build.sh

@@ -1,11 +1,10 @@
 TERMUX_PKG_HOMEPAGE=https://www.gnu.org/software/libtool/
 TERMUX_PKG_DESCRIPTION="Generic library support script hiding the complexity of using shared libraries behind a consistent, portable interface"
-TERMUX_PKG_DEPENDS="bash,grep,sed"
 TERMUX_PKG_VERSION=2.4.6
-TERMUX_PKG_REVISION=4
+TERMUX_PKG_REVISION=5
 TERMUX_PKG_SRCURL=https://mirrors.kernel.org/gnu/libtool/libtool-${TERMUX_PKG_VERSION}.tar.gz
 TERMUX_PKG_SHA256=e3bd4d5d3d025a36c21dd6af7ea818a2afcd4dfc1ea5a17b39d7854bcd0c06e3
-TERMUX_PKG_DEPENDS="libltdl"
+TERMUX_PKG_DEPENDS="bash,grep,sed,libltdl"
 TERMUX_PKG_NO_DEVELSPLIT=yes
 TERMUX_PKG_CONFLICTS="libtool-dev"
 TERMUX_PKG_REPLACES="libtool-dev"