src/Makefile{,.utils}: typos a/an

src/Makefile

@@ -28,7 +28,7 @@ include Makefile.sources
 include Makefile.targets
 
 # whether or not the entire build process should fail if building a module or
-#  an utility fails
+#  a utility fails
 err_fail?=1
 
 # whether or not to install $(MAIN_NAME).cfg or just $(MAIN_NAME).cfg.default

src/Makefile.utils

@@ -30,7 +30,7 @@ COREPATH ?=../../src
 ALLDEP=Makefile $(COREPATH)/Makefile.sources $(COREPATH)/Makefile.rules \
  $(COREPATH)/Makefile.utils $(COREPATH)/Makefile.dirs $(COREPATH)/config.mak
 
-#override modules value, an util cannot have submodules
+#override modules value, a util cannot have submodules
 override modules=
 override static_modules=
 override static_modules_path=