fltk-devel: update to 63b86bd8 (20190404)

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 7a3af40ede5cbd325775eb4ffdef9ff28bcad191
-    version      20190328
-    checksums    rmd160 85a4cfce8dedf31d83c87c345e217c1106da9afd \
-                 sha256 52ab94e3f0093d3670dce166ba5360c4db810afb537c051b6a0653c3afaaba5a \
-                 size   5946267
+    github.setup fltk fltk 63b86bd8f76f7d1881b1d0a60183c9d4a9ee786b
+    version      20190404
+    checksums    rmd160 2739cbb710818c232110479a38b41711021fc6e9 \
+                 sha256 bf537292269581409e0c50d20beed543c645d3f0de8800454984a49082c0d8ec \
+                 size   5946015
     revision     0
 
     patchfiles-append \