top(1): unbreak build with gcc7; fix varargs

- use correct function for varargs argument
- allow build to complete with gcc7 at current WARNS

Reported by:	jhibbits, ian

1 files changed, 2 insertions, 6 deletions

diff --git a/usr.bin/top/top.c b/usr.bin/top/top.c
index 8392e92be6f2..fb1928b0db8c 100644
--- a/usr.bin/top/top.c
+++ b/usr.bin/top/top.c
@@ -94,7 +94,7 @@ static void (*d_process)(int line, char *thisline) = i_process;
 static void reset_display(void);
 
 static void
-reset_uids()
+reset_uids(void)
 {
     for (size_t i = 0; i < TOP_MAX_UIDS; ++i)
 	ps.uid[i] = -1;
@@ -198,11 +198,7 @@ end:
 }
 
 int
-main(argc, argv)
-
-int  argc;
-char *argv[];
-
+main(int argc, char *argv[])
 {
     int i;
     int active_procs;