tests: fix a couple of drawdag.py references

Differential Revision: https://phab.mercurial-scm.org/D4635

tests/test-absorb-phase.t

@@ -1,30 +1,30 b''
   $ cat >> $HGRCPATH << EOF
   > [extensions]
   > absorb=
-  > drawdag=$RUNTESTDIR/drawdag.py
+  > drawdag=$TESTDIR/drawdag.py
   > EOF
 
   $ hg init
   $ hg debugdrawdag <<'EOS'
   > C
   > |
   > B
   > |
   > A
   > EOS
 
   $ hg phase -r A --public -q
   $ hg phase -r C --secret --force -q
 
   $ hg update C -q
   $ printf B1 > B
 
   $ hg absorb -q
 
   $ hg log -G -T '{desc} {phase}'
   @  C secret
   |
   o  B draft
   |
   o  A public
   

tests/test-absorb-strip.t

@@ -1,45 +1,45 b''
 Do not strip innocent children. See https://bitbucket.org/facebook/hg-experimental/issues/6/hg-absorb-merges-diverged-commits
 
   $ cat >> $HGRCPATH << EOF
   > [extensions]
   > absorb=
-  > drawdag=$RUNTESTDIR/drawdag.py
+  > drawdag=$TESTDIR/drawdag.py
   > EOF
 
   $ hg init
   $ hg debugdrawdag << EOF
   > E
   > |
   > D F
   > |/
   > C
   > |
   > B
   > |
   > A
   > EOF
 
   $ hg up E -q
   $ echo 1 >> B
   $ echo 2 >> D
   $ hg absorb
   saved backup bundle to * (glob)
   2 of 2 chunk(s) applied
 
   $ hg log -G -T '{desc}'
   @  E
   |
   o  D
   |
   o  C
   |
   o  B
   |
   | o  F
   | |
   | o  C
   | |
   | o  B
   |/
   o  A