Improve make and make install messages (#5207)

Makefile

@@ -70,7 +70,7 @@ coverage: build
 
 # Builds minio locally.
 build:
-	@echo "Building minio to $(PWD)/minio ..."
+	@echo "Building minio binary: $(PWD)/minio"
 	@CGO_ENABLED=0 go build --ldflags $(BUILD_LDFLAGS) -o $(PWD)/minio
 
 pkg-add:
@@ -90,9 +90,9 @@ pkg-list:
 
 # Builds minio and installs it to $GOPATH/bin.
 install: build
-	@echo "Installing minio at $(GOPATH)/bin/minio ..."
+	@echo "Installing minio binary: $(GOPATH)/bin/minio"
 	@cp $(PWD)/minio $(GOPATH)/bin/minio
-	@echo "Check 'minio -h' for help."
+	@echo "\nInstallation successful. To learn more, try \"minio --help\"."
 
 clean:
 	@echo "Cleaning up all the generated files"