Changed the patch level to 1.5a3, to avoid confusion with a2 (I'm not

gvanrossum · gvanrossum · commit 766118525ade · 1997-07-19T23:46:59.000Z
ready for a release yet).
diff --git a/Include/patchlevel.h b/Include/patchlevel.h
@@ -1 +1 @@
-#define PATCHLEVEL "1.5a2"
+#define PATCHLEVEL "1.5a3"
