Rename bytesobject.c back to stringobject.c to keep with the PyString theme.
Part of reverting most of r63675 per the mailing list discussion.
diff --git a/Makefile.pre.in b/Makefile.pre.in
index 94e937c..c7b72f5 100644
--- a/Makefile.pre.in
+++ b/Makefile.pre.in
@@ -303,7 +303,6 @@
 		Objects/bufferobject.o \
 		Objects/bytes_methods.o \
 		Objects/bytearrayobject.o \
-		Objects/bytesobject.o \
 		Objects/cellobject.o \
 		Objects/classobject.o \
 		Objects/cobject.o \
@@ -327,8 +326,9 @@
 		Objects/object.o \
 		Objects/obmalloc.o \
 		Objects/rangeobject.o \
-                Objects/setobject.o \
+		Objects/setobject.o \
 		Objects/sliceobject.o \
+		Objects/stringobject.o \
 		Objects/structseq.o \
 		Objects/tupleobject.o \
 		Objects/typeobject.o \
@@ -563,8 +563,6 @@
 
 Objects/stringobject.o: $(srcdir)/Objects/stringobject.c \
 				$(STRINGLIB_HEADERS)
-Objects/bytesobject.o: $(srcdir)/Objects/bytesobject.c \
-				$(STRINGLIB_HEADERS)
 
 Python/formatter_unicode.o: $(srcdir)/Python/formatter_unicode.c \
 				$(STRINGLIB_HEADERS)