Update ROOT version files to v6.18/02.

Author: Axel-Naumann

build/version_number

@@ -1 +1 @@
-6.18/01
+6.18/02

core/base/inc/RVersion.h

@@ -14,10 +14,10 @@
  *
 */
 
-#define ROOT_RELEASE "6.18/01"
-#define ROOT_RELEASE_DATE "Jun 25 2019"
-#define ROOT_RELEASE_TIME "10:53:53"
+#define ROOT_RELEASE "6.18/02"
+#define ROOT_RELEASE_DATE "Aug 23 2019"
+#define ROOT_RELEASE_TIME "22:51:27"
 #define ROOT_VERSION(a,b,c) (((a) << 16) + ((b) << 8) + (c))
-#define ROOT_VERSION_CODE ROOT_VERSION(6,18,1) /* 397825 */
+#define ROOT_VERSION_CODE ROOT_VERSION(6,18,2) /* 397826 */
 
 #endif