Move sysinfo parser to a separate file

* sysinfo.c: New file.
* Makefile.am (strace_SOURCES): Add it.
* resource.c (sys_sysinfo): Move to sysinfo.c.
diff --git a/sysinfo.c b/sysinfo.c
new file mode 100644
index 0000000..e37c4a2
--- /dev/null
+++ b/sysinfo.c
@@ -0,0 +1,28 @@
+#include "defs.h"
+#include <sys/sysinfo.h>
+
+int
+sys_sysinfo(struct tcb *tcp)
+{
+	struct sysinfo si;
+
+	if (exiting(tcp)) {
+		if (syserror(tcp) || !verbose(tcp))
+			tprintf("%#lx", tcp->u_arg[0]);
+		else if (umove(tcp, tcp->u_arg[0], &si) < 0)
+			tprints("{...}");
+		else {
+			tprintf("{uptime=%lu, loads=[%lu, %lu, %lu] ",
+				(long) si.uptime, (long) si.loads[0],
+				(long) si.loads[1], (long) si.loads[2]);
+			tprintf("totalram=%lu, freeram=%lu, ",
+				(long) si.totalram, (long) si.freeram);
+			tprintf("sharedram=%lu, bufferram=%lu} ",
+				(long) si.sharedram, (long) si.bufferram);
+			tprintf("totalswap=%lu, freeswap=%lu, procs=%u}",
+				(long) si.totalswap, (long) si.freeswap,
+				(unsigned)si.procs);
+		}
+	}
+	return 0;
+}