Increment the version

Author: postgres-dev

src/pg_probackup.h

@@ -347,7 +347,7 @@ typedef enum ShowFormat
 #define BYTES_INVALID (-1) /* file didn`t changed since previous backup, DELTA backup do not rely on it */
 #define FILE_NOT_FOUND (-2) /* file disappeared during backup */
 #define BLOCKNUM_INVALID	(-1)
-#define PROGRAM_VERSION	"2.5.10"
+#define PROGRAM_VERSION	"2.5.11"
 
 /* update when remote agent API or behaviour changes */
 #define AGENT_PROTOCOL_VERSION 20509