monit: add alpine patch to fix musl.

srcpkgs/monit/patches/musl-fix.patch

@@ -0,0 +1,13 @@
+--- src/process/sysdep_LINUX.c.orig
++++ src/process/sysdep_LINUX.c
+@@ -79,6 +79,10 @@
+ #include <glob.h>
+ #endif
+ 
++#ifndef GLOB_ONLYDIR
++#define GLOB_ONLYDIR 0
++#endif
++
+ #ifndef HZ
+ # define HZ sysconf(_SC_CLK_TCK)
+ #endif