Fix a leak when TIFFRGBAImageBegin fails

third_party/libtiff/0010-fix-leak-imagebegin.patch

Index: third_party/libtiff/0010-fix-leak-imagebegin.patch
diff --git a/third_party/libtiff/0010-fix-leak-imagebegin.patch b/third_party/libtiff/0010-fix-leak-imagebegin.patch
new file mode 100644
index 0000000000000000000000000000000000000000..41aaf91a38533cde468cb43ef5199d7f4137868e
--- /dev/null
+++ b/third_party/libtiff/0010-fix-leak-imagebegin.patch
@@ -0,0 +1,15 @@
+diff --git a/third_party/libtiff/tif_getimage.c b/third_party/libtiff/tif_getimage.c
+index 8523793..97fa94d 100644
+--- a/third_party/libtiff/tif_getimage.c
++++ b/third_party/libtiff/tif_getimage.c
+@@ -478,10 +478,7 @@ TIFFRGBAImageBegin(TIFFRGBAImage* img, TIFF* tif, int stop, char emsg[1024])
+        return 1;
+ 
+   fail_return:
+-        _TIFFfree( img->redcmap );
+-        _TIFFfree( img->greencmap );
+-        _TIFFfree( img->bluecmap );
+-        img->redcmap = img->greencmap = img->bluecmap = NULL;
++        TIFFRGBAImageEnd(img);
+         return 0;
+ }