update CHANGES, fix #1087

Author: oesteban

CHANGES

@@ -1,7 +1,8 @@
 Next release
 ============
 
-* FIX: Enable absolute path definitions in DCMStack (https://github.com/nipy/nipype/pull/1089)
+* FIX: Enable absolute path definitions in DCMStack (https://github.com/nipy/nipype/pull/1089,
+       replaced by https://github.com/nipy/nipype/pull/1093)
 * ENH: New algorithm: mesh.WarpPoints applies displacements fields to point sets.
 * ENH: Improved FieldMap-Based (FMB) workflow for correction of susceptibility distortions
        in EPI seqs. (https://github.com/nipy/nipype/pull/1019)