Update ancient copyright string in -version output

Currently the -version command line argument prints a string ending
with "Copyright (c) 2003-2008 Fabrice Bellard".  This is now some
eight years out of date; abstract it out of the several places that
print the string and update it to:

Copyright (c) 2003-2016 Fabrice Bellard and the QEMU Project developers

to reflect the work by all the QEMU Project contributors over the
last decade.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Acked-by: NStefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: NEric Blake <eblake@redhat.com>
Message-id: 1470309276-5012-1-git-send-email-peter.maydell@linaro.org

bsd-user/main.c

@@ -667,7 +667,8 @@ void cpu_loop(CPUSPARCState *env)
 
 static void usage(void)
 {
-    printf("qemu-" TARGET_NAME " version " QEMU_VERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n"
+    printf("qemu-" TARGET_NAME " version " QEMU_VERSION QEMU_PKGVERSION
+           ", " QEMU_COPYRIGHT "\n"
            "usage: qemu-" TARGET_NAME " [options] program [arguments...]\n"
            "BSD CPU emulator (compiled for %s emulation)\n"
            "\n"

include/qemu-common.h

@@ -18,6 +18,10 @@
 
 #include "qemu/option.h"
 
+/* Copyright string for -version arguments, About dialogs, etc */
+#define QEMU_COPYRIGHT "Copyright (c) 2003-2016 " \
+    "Fabrice Bellard and the QEMU Project developers"
+
 /* main function, renamed */
 #if defined(CONFIG_COCOA)
 int qemu_main(int argc, char **argv, char **envp);

linux-user/main.c

@@ -4000,7 +4000,7 @@ static void handle_arg_strace(const char *arg)
 static void handle_arg_version(const char *arg)
 {
     printf("qemu-" TARGET_NAME " version " QEMU_VERSION QEMU_PKGVERSION
-           ", Copyright (c) 2003-2008 Fabrice Bellard\n");
+           ", " QEMU_COPYRIGHT "\n");
     exit(EXIT_SUCCESS);
 }
 

qemu-img.c

@@ -44,7 +44,7 @@
 #include <getopt.h>
 
 #define QEMU_IMG_VERSION "qemu-img version " QEMU_VERSION QEMU_PKGVERSION \
-                          ", Copyright (c) 2004-2008 Fabrice Bellard\n"
+                          ", " QEMU_COPYRIGHT "\n"
 
 typedef struct img_cmd_t {
     const char *name;

vl.c

@@ -1914,7 +1914,8 @@ static void main_loop(void)
 
 static void version(void)
 {
-    printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", Copyright (c) 2003-2008 Fabrice Bellard\n");
+    printf("QEMU emulator version " QEMU_VERSION QEMU_PKGVERSION ", "
+           QEMU_COPYRIGHT "\n");
 }
 
 static void help(int exitcode)