(main): Declare to be of type int, not void.

src/chgrp.c

@@ -260,7 +260,7 @@ Change the group membership of each FILE to GROUP.\n\
   exit (status);
 }
 
-void
+int
 main (int argc, char **argv)
 {
   int group;

src/chmod.c

@@ -229,7 +229,7 @@ one or more of the letters rwxXstugo.\n"));
 /* Parse the ASCII mode given on the command line into a linked list
    of `struct mode_change' and apply that to each file argument. */
 
-void
+int
 main (int argc, char **argv)
 {
   struct mode_change *changes;

src/chown.c

@@ -233,7 +233,7 @@ to login group if implied by a period.  A colon may replace the period.\n"));
   exit (status);
 }
 
-void
+int
 main (int argc, char **argv)
 {
   uid_t user = (uid_t) -1;	/* New uid; -1 if not to be changed. */

src/cp.c

@@ -191,8 +191,8 @@ static struct option const long_opts[] =
   {"version", no_argument, &show_version, 1},
   {NULL, 0, NULL, 0}
 };
-
-void
+
+int
 main (int argc, char **argv)
 {
   int c;

src/dd.c

@@ -317,7 +317,7 @@ static struct option const long_options[] =
   {0, 0, 0, 0}
 };
 
-void
+int
 main (int argc, char **argv)
 {
 #ifdef _POSIX_VERSION

src/df.c

@@ -143,7 +143,7 @@ static struct option const long_options[] =
   {NULL, 0, NULL, 0}
 };
 
-void
+int
 main (int argc, char **argv)
 {
   int i;

src/du.c

@@ -238,7 +238,7 @@ Summarize disk usage of each FILE, recursively for directories.\n\
   exit (status);
 }
 
-void
+int
 main (int argc, char **argv)
 {
   int c;

src/install.c

@@ -155,7 +155,7 @@ static struct option const long_options[] =
   {NULL, 0, NULL, 0}
 };
 
-void
+int
 main (int argc, char **argv)
 {
   int optc;

src/ln.c

@@ -297,7 +297,7 @@ version control may be set with VERSION_CONTROL, values are:\n\
   exit (status);
 }
 
-void
+int
 main (int argc, char **argv)
 {
   int c;

src/ls.c

@@ -617,7 +617,7 @@ dired_dump_obstack (const char *prefix, struct obstack *os)
     }
 }
 
-void
+int
 main (int argc, char **argv)
 {
   register int i;

src/mkdir.c

@@ -79,8 +79,7 @@ Create the DIRECTORY(ies), if they do not already exist.\n\
   exit (status);
 }
 
-
-void
+int
 main (int argc, char **argv)
 {
   unsigned int newmode;

src/mkfifo.c

@@ -69,7 +69,7 @@ Create named pipes (FIFOs) with the given NAMEs.\n\
 }
 #endif
 
-void
+int
 main (int argc, char **argv)
 {
   unsigned short newmode;

src/mknod.c

@@ -79,7 +79,7 @@ MAJOR MINOR are forbidden for TYPE p, mandatory otherwise.  TYPE may be:\n\
   exit (status);
 }
 
-void
+int
 main (int argc, char **argv)
 {
   unsigned short newmode;

src/mv.c

@@ -399,7 +399,7 @@ version control may be set with VERSION_CONTROL, values are:\n\
   exit (status);
 }
 
-void
+int
 main (int argc, char **argv)
 {
   int c;

src/rm.c

@@ -110,7 +110,7 @@ static struct option const long_opts[] =
   {NULL, 0, NULL, 0}
 };
 
-void
+int
 main (int argc, char **argv)
 {
   int err = 0;

src/rmdir.c

@@ -94,7 +94,7 @@ Remove the DIRECTORY(ies), if they are empty.\n\
   exit (status);
 }
 
-void
+int
 main (int argc, char **argv)
 {
   int errors = 0;

src/sync.c

@@ -47,7 +47,7 @@ Force changed blocks to disk, update the super block.\n\
   exit (status);
 }
 
-void
+int
 main (int argc, char **argv)
 {
   program_name = argv[0];

src/touch.c

@@ -265,7 +265,7 @@ STAMP may be used without -t if none of -drt, nor --, are used.\n"));
   exit (status);
 }
 
-void
+int
 main (int argc, char **argv)
 {
   int c, i;