Log Message:
ImageMagick: update to 7.0.8.11.

2018-08-28  7.0.8-11 Cristy  <quetzlzacatenango@image...>
  * Release ImageMagick version 7.0.8-11, GIT revision 14729:798fbdb5b:20180828

2018-08-15  7.0.8-11 Cristy  <quetzlzacatenango@image...>
  * Fixed numerous use of uninitialized values, integer overflow, memory
    exceeded, and timeouts (credit to OSS Fuzz).
  * Add support for "module" security policy.