Adapted to Corrade changes.

src/Magnum/Platform/gl-info.cpp

@@ -197,7 +197,7 @@ MagnumInfo::MagnumInfo(const Arguments& arguments): Platform::WindowlessApplicat
         .addBooleanOption("all-extensions").setHelp("all-extensions", "display extensions also for fully supported versions")
         .addBooleanOption("limits").setHelp("limits", "display also limits and implementation-defined values")
         .addSkippedPrefix("magnum", "engine-specific options")
-        .setHelp("Displays information about Magnum engine and OpenGL capabilities.");
+        .setGlobalHelp("Displays information about Magnum engine and OpenGL capabilities.");
 
     #ifdef CORRADE_TARGET_IOS
     {

src/Magnum/Text/fontconverter.cpp

@@ -148,7 +148,7 @@ FontConverter::FontConverter(const Arguments& arguments): Platform::WindowlessAp
         .addOption("output-size", "256 256").setHelp("output-size", "output atlas size. If set to zero size, distance field computation will not be used.", "\"X Y\"")
         .addOption("radius", "24").setHelp("radius", "distance field computation radius", "N")
         .addSkippedPrefix("magnum", "engine-specific options")
-        .setHelp("Converts font to raster one of given atlas size.")
+        .setGlobalHelp("Converts font to raster one of given atlas size.")
         .parse(arguments.argc, arguments.argv);
 
     createContext();

src/Magnum/TextureTools/distancefieldconverter.cpp

@@ -147,7 +147,7 @@ DistanceFieldConverter::DistanceFieldConverter(const Arguments& arguments): Plat
         .addNamedArgument("output-size").setHelp("output-size", "size of output image", "\"X Y\"")
         .addNamedArgument("radius").setHelp("radius", "distance field computation radius", "N")
         .addSkippedPrefix("magnum", "engine-specific options")
-        .setHelp("Converts red channel of an image to distance field representation.")
+        .setGlobalHelp("Converts red channel of an image to distance field representation.")
         .parse(arguments.argc, arguments.argv);
 
     createContext();

src/Magnum/Trade/imageconverter.cpp

@@ -94,7 +94,7 @@ int main(int argc, char** argv) {
         .addOption("importer", "AnyImageImporter").setHelp("importer", "image importer plugin")
         .addOption("converter", "AnyImageConverter").setHelp("converter", "image converter plugin")
         .addOption("plugin-dir").setHelp("plugin-dir", "override base plugin dir", "DIR")
-        .setHelp("Converts images of different formats.")
+        .setGlobalHelp("Converts images of different formats.")
         .parse(argc, argv);
 
     /* Load importer plugin */