termux-am: Unset LD_PRELOAD

PR submitted at https://github.com/michalbednarski/TermuxAm/pull/1

packages/termux-am/build.sh

@@ -2,6 +2,7 @@ TERMUX_PKG_HOMEPAGE=https://github.com/michalbednarski/TermuxAm
 TERMUX_PKG_DESCRIPTION="Android Oreo-compatible am command reimplementation"
 TERMUX_PKG_MAINTAINER="Michal Bednarski @michalbednarski"
 TERMUX_PKG_VERSION=0.1
+TERMUX_PKG_REVISION=1
 TERMUX_PKG_SHA256=ed5dcb526d2cabb12754e471f1284822e052550c3206421e1bb889684b97c7b8
 TERMUX_PKG_SRCURL=https://github.com/michalbednarski/TermuxAm/archive/v$TERMUX_PKG_VERSION.zip
 TERMUX_PKG_PLATFORM_INDEPENDENT=yes

packages/termux-am/unset-LD_PRELOAD.patch

@@ -0,0 +1,9 @@
+diff -u -r ../TermuxAm-0.1/am-libexec-packaged ./am-libexec-packaged
+--- ../TermuxAm-0.1/am-libexec-packaged	2018-02-03 16:43:05.000000000 +0100
++++ ./am-libexec-packaged	2018-02-05 01:11:01.744982848 +0100
+@@ -1,4 +1,4 @@
+ #!/data/data/com.termux/files/usr/bin/bash
+ export CLASSPATH=/data/data/com.termux/files/usr/libexec/termux-am/am.apk
+-unset LD_LIBRARY_PATH
++unset LD_LIBRARY_PATH LD_PRELOAD
+ exec /system/bin/app_process / com.example.termuxam.Am "$@"