gnu: mate-icon-theme: Update to 1.18.2.

* gnu/packages/mate.scm (mate-icon-theme): Update to 1.18.2.

gnu/packages/mate.scm

@@ -37,7 +37,7 @@ (define-module (gnu packages mate)
 (define-public mate-icon-theme
   (package
     (name "mate-icon-theme")
-    (version "1.16.0")
+    (version "1.18.2")
     (source (origin
               (method url-fetch)
               (uri (string-append "http://pub.mate-desktop.org/releases/"
@@ -45,7 +45,7 @@ (define-public mate-icon-theme
                                   name "-" version ".tar.xz"))
               (sha256
                (base32
-                "1zldw22p1i76iss8car39pmfagpfxxlfk1fdhvr4x5r6gf36gv7d"))))
+                "0si3li3kza7s45zhasjvqn5f85zpkn0x8i4kq1dlnqvjjqzkg4ch"))))
     (build-system gnu-build-system)
     (native-inputs
      `(("pkg-config" ,pkg-config)