Platform: print each flag on separate line in `magnum-info`.

It's more readable.

src/Platform/magnum-info.cpp

@@ -61,40 +61,38 @@ MagnumInfo::MagnumInfo(const Arguments& arguments): Platform::WindowlessApplicat
     Debug() << "";
 
     Debug() << "Used application: Platform::WindowlessGlxApplication";
-    {
+
-        Debug d;
+    Debug() << "Compilation flags:";
-        d << "Compilation flags:";
     #ifdef CORRADE_GCC46_COMPATIBILITY
-        d << "CORRADE_GCC46_COMPATIBILITY";
+    Debug() << "    CORRADE_GCC46_COMPATIBILITY";
     #endif
     #ifdef CORRADE_GCC47_COMPATIBILITY
-        d << "CORRADE_GCC47_COMPATIBILITY";
+    Debug() << "    CORRADE_GCC47_COMPATIBILITY";
     #endif
     #ifdef CORRADE_BUILD_STATIC
-        d << "CORRADE_BUILD_STATIC";
+    Debug() << "    CORRADE_BUILD_STATIC";
     #endif
     #ifdef MAGNUM_BUILD_STATIC
-        d << "MAGNUM_BUILD_STATIC";
+    Debug() << "    MAGNUM_BUILD_STATIC";
     #endif
     #ifdef CORRADE_TARGET_NACL
-        d << "CORRADE_TARGET_NACL";
+    Debug() << "    CORRADE_TARGET_NACL";
     #endif
     #ifdef CORRADE_TARGET_NACL_NEWLIB
-        d << "CORRADE_TARGET_NACL_NEWLIB";
+    Debug() << "    CORRADE_TARGET_NACL_NEWLIB";
     #endif
     #ifdef CORRADE_TARGET_NACL_GLIBC
-        d << "CORRADE_TARGET_NACL_GLIBC";
+    Debug() << "    CORRADE_TARGET_NACL_GLIBC";
     #endif
     #ifdef MAGNUM_TARGET_GLES
-        d << "MAGNUM_TARGET_GLES";
+    Debug() << "    MAGNUM_TARGET_GLES";
     #endif
     #ifdef MAGNUM_TARGET_GLES2
-        d << "MAGNUM_TARGET_GLES2";
+    Debug() << "    MAGNUM_TARGET_GLES2";
     #endif
     #ifdef MAGNUM_TARGET_DESKTOP_GLES
-        d << "MAGNUM_TARGET_DESKTOP_GLES";
+    Debug() << "    MAGNUM_TARGET_DESKTOP_GLES";
     #endif
-    }
     Debug() << "";
 
     Debug() << "Vendor:" << c->vendorString();