fltk-devel: update to 7a3af40e (20190328)

aqua/fltk/Portfile

@@ -51,11 +51,11 @@ if {${subport} eq ${name}} {
     long_description ${long_description} \
         This port provides the snapshot released of FLTK, typically updated a few times a month.
 
-    github.setup fltk fltk 499ec5c2915530bc3b0d72ef37ff74801cfc67a7
-    version      20190325
-    checksums    rmd160 76787824a3f16aaa21d39a8f55b97d72c7cdc6ab \
-                 sha256 3fe144b3af14cd2b36719f5842d45465b48f62810d3aae0d605d094eed8be38a \
-                 size   5945245
+    github.setup fltk fltk 7a3af40ede5cbd325775eb4ffdef9ff28bcad191
+    version      20190328
+    checksums    rmd160 85a4cfce8dedf31d83c87c345e217c1106da9afd \
+                 sha256 52ab94e3f0093d3670dce166ba5360c4db810afb537c051b6a0653c3afaaba5a \
+                 size   5946267
     revision     0
 
     patchfiles-append \