fix Makefile

Author: wuxianrong

tools/pika_exporter/Makefile

@@ -10,7 +10,7 @@ COMPILERVERSION	:= $(subst go version ,,$(shell go version))
 PROJNAME        := pika_exporter
 PIKA_EXPORTER_MAJOR := 3
 PIKA_EXPORTER_MINOR := 5
-PIKA_EXPORTER_PATCH := 4
+PIKA_EXPORTER_PATCH := 5
 
 define GENERATE_VERSION_CODE
 cat << EOF | gofmt > version.go