Make fio include the git version in the version output

Makes it easier in bug reporting, don't have to ask people what
they are running...

Here's to you, Kep.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
diff --git a/init.c b/init.c
index 261e02e..a04198f 100644
--- a/init.c
+++ b/init.c
@@ -25,14 +25,7 @@
 
 #include "fio_version.h"
 
-#if FIO_PATCH > 0
-const char fio_version_string[] =	__fio_stringify(FIO_MAJOR) "."	\
-					__fio_stringify(FIO_MINOR) "."	\
-					__fio_stringify(FIO_PATCH);
-#else
-const char fio_version_string[] =	__fio_stringify(FIO_MAJOR) "."	\
-					__fio_stringify(FIO_MINOR);
-#endif
+const char fio_version_string[] = FIO_VERSION;
 
 #define FIO_RANDSEED		(0xb1899bedUL)
 
@@ -1182,7 +1175,7 @@
 
 static void usage(const char *name)
 {
-	printf("fio %s\n", fio_version_string);
+	printf("%s\n", fio_version_string);
 	printf("%s [options] [job options] <job file(s)>\n", name);
 	printf("  --debug=options\tEnable debug logging. May be one/more of:\n"
 		"\t\t\tprocess,file,io,mem,blktrace,verify,random,parse,\n"
@@ -1455,7 +1448,7 @@
 			break;
 		case 'v':
 			if (!cur_client) {
-				log_info("fio %s\n", fio_version_string);
+				log_info("%s\n", fio_version_string);
 				do_exit++;
 			}
 			break;
@@ -1694,7 +1687,7 @@
 	}
 
 	if (!terse_output)
-		log_info("fio %s\n", fio_version_string);
+		log_info("%s\n", fio_version_string);
 
 	return 0;
 }