* src/cff/cf2font.c (cf2_computeDarkening): Initialize darkenAmount.

This line was lost in commit 89ca1fd6 (from 2013-06-25).  The effect
is to use a previous darkening amount when producing an unhinted,
unscaled outline.  This can cause autohint samples in ftgrid and
ftview to be based on darkened CFF outlines instead of unhinted,
undarkened ones.

ChangeLog

@@ -1,3 +1,13 @@
+2013-10-02  Dave Arnold  <darnold@adobe.com>
+
+	* src/cff/cf2font.c (cf2_computeDarkening): Initialize darkenAmount.
+
+	This line was lost in commit 89ca1fd6 (from 2013-06-25).  The effect
+	is to use a previous darkening amount when producing an unhinted,
+	unscaled outline.  This can cause autohint samples in ftgrid and
+	ftview to be based on darkened CFF outlines instead of unhinted,
+	undarkened ones.
+
 2013-09-29  Dave Arnold  <darnold@adobe.com>
 
 	Fix Savannah bug #39295.

src/cff/cf2font.c

@@ -101,6 +101,7 @@
     /* convenience.                                             */
     CF2_Fixed  stemWidthPer1000, scaledStem;
 
+    *darkenAmount = 0;
 
     if ( boldenAmount == 0 && !stemDarkened )
       return;