Generate the ChangeLog as part of "make dist" instead of having it

in the repo.

diff --cc Makefile.in
index f20863dce6739a3b707853fd4e93551c223663a5,c331abe8af0deebfdb420d09dd31f8cb718ae531..d422fab0dc4fa4fcea3c3d4c74f8ab8a417e5117
--- 1/Makefile.in
--- 2/Makefile.in
+++ b/Makefile.in
@@@ -447,8 -447,10 +447,8 @@@ sudoers.cat: sudoers.ma
  @DEV@LICENSE: license.pod
  @DEV@ pod2text -l -i0 $> | sed '1,2d' > $@
  
 -# The 1.7 branch started Jan 18, 2010
  ChangeLog:
-       hg log --style=changelog -b default > ChangeLog
 -      hg log --style=changelog -b 1.7 > $@
 -      hg log --style=changelog -b default --date '<2010-01-18 00:00:00' >> $@
++      hg log --style=changelog -b default > $@
  
  install: install-dirs install-binaries @INSTALL_NOEXEC@ install-sudoers install-man