Update makefile to work with macports; formatting change to usage output

Author: Nate Fisher

Makefile

@@ -3,7 +3,7 @@ BUILD_DIR   =build
 TESTS_DIR   =tests
 GTEST_DIR   =googletest/googletest
 GTEST_INC   =-I$(GTEST_DIR)/include -I$(GTEST_DIR)/include/gtest -I$(GTEST_DIR)/include/gtest/internal
-INSTALL_DIR =/opt/local/bin
+INSTALL_DIR =opt/local/bin
 
 all : $(BUILD_DIR)/rel/smlr
 
@@ -12,7 +12,7 @@ test : $(BUILD_DIR)/rel/smlr_ut
 	@$(BUILD_DIR)/rel/smlr_ut
 
 install : $(BUILD_DIR)/rel/smlr
-	cp $(BUILD_DIR)/rel/smlr $(INSTALL_DIR)/smlr
+	cp $^ $(DESTDIR)/$(INSTALL_DIR)
 
 clean :
 	rm -rf $(BUILD_DIR)

src/main.c

@@ -111,12 +111,12 @@ void usage() {
   printf("\t\tCan be either `left` or `right`\n");
   printf("\t\tDefault value is middle\n");
 
-  printf("\nEXAMPLES\n");
-  printf("git rev-parse --abbrev-ref HEAD | smlr -s 10 -a left\n");
-  printf("  > feat...-13\n");
-  printf("echo \"abcdefghijkl\" | smlr -s 10 -a right\n");
-  printf("  > ...ghijkl\n");
-  printf("date | smlr -s 10\n");
+  printf("\nExamples:\n");
+  printf("  > git rev-parse --abbrev-ref HEAD | smlr -s 10 -a left\n");
+  printf("  > feat...-13\n\n");
+  printf("  > echo \"abcdefghijkl\" | smlr -s 10 -a right\n");
+  printf("  > ...ghijkl\n\n");
+  printf("  > date | smlr -s 10\n");
   printf("  > Thu ...017\n\n");
 
 }