gpsbabel: qt5 support

Closes #5960.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>

Formula/gpsbabel.rb

@@ -1,5 +1,5 @@
 class Gpsbabel < Formula
-  desc "GPSBabel converts/uploads GPS waypoints, tracks, and routes"
+  desc "Converts/uploads GPS waypoints, tracks, and routes"
   homepage "https://www.gpsbabel.org/"
   url "https://github.com/gpsbabel/gpsbabel/archive/gpsbabel_1_5_3.tar.gz"
   sha256 "10b7aaca44ce557fa1175fec37297b8df55611ab2c51cb199753a22dbf2d3997"
@@ -13,7 +13,7 @@ class Gpsbabel < Formula
   end
 
   depends_on "libusb" => :optional
-  depends_on "qt"
+  depends_on "qt5"
 
   def install
     args = ["--disable-debug", "--disable-dependency-tracking",
@@ -22,4 +22,18 @@ class Gpsbabel < Formula
     system "./configure", *args
     system "make", "install"
   end
+
+  test do
+    (testpath/"test.loc").write <<-EOS.undent
+      <?xml version="1.0"?>
+      <loc version="1.0">
+        <waypoint>
+          <name id="1 Infinite Loop"><![CDATA[Apple headquarters]]></name>
+          <coord lat="37.331695" lon="-122.030091"/>
+        </waypoint>
+      </loc>
+    EOS
+    system bin/"gpsbabel", "-i", "geo", "-f", "test.loc", "-o", "gpx", "-F", "test.gpx"
+    assert File.exist? "test.gpx"
+  end
 end