Remove superfluous comma from SDL_missing_dependency calls

cmake/sdlchecks.cmake

@@ -402,7 +402,7 @@ macro(CheckX11)
           endif()
           set(SDL_VIDEO_DRIVER_X11_XCURSOR 1)
         else()
-          SDL_missing_dependency(XCURSOR, SDL_X11_XCURSOR)
+          SDL_missing_dependency(XCURSOR SDL_X11_XCURSOR)
         endif()
       endif()
 
@@ -411,7 +411,7 @@ macro(CheckX11)
           set(HAVE_X11_XDBE TRUE)
           set(SDL_VIDEO_DRIVER_X11_XDBE 1)
         else()
-          SDL_missing_dependency(XDBE, SDL_X11_XDBE)
+          SDL_missing_dependency(XDBE SDL_X11_XDBE)
         endif()
       endif()
 
@@ -467,7 +467,7 @@ macro(CheckX11)
           endif()
 
         else()
-          SDL_missing_dependency(XINPUT, SDL_X11_XINPUT)
+          SDL_missing_dependency(XINPUT SDL_X11_XINPUT)
         endif()
       endif()
 
@@ -491,7 +491,7 @@ macro(CheckX11)
           set(SDL_VIDEO_DRIVER_X11_XFIXES 1)
           set(HAVE_X11_XFIXES TRUE)
         else()
-          SDL_missing_dependency(XFIXES, SDL_X11_XFIXES)
+          SDL_missing_dependency(XFIXES SDL_X11_XFIXES)
         endif()
       endif()
 
@@ -500,7 +500,7 @@ macro(CheckX11)
           set(SDL_VIDEO_DRIVER_X11_XSYNC 1)
           set(HAVE_X11_XSYNC TRUE)
         else()
-          SDL_missing_dependency(XSYNC, SDL_X11_XSYNC)
+          SDL_missing_dependency(XSYNC SDL_X11_XSYNC)
         endif()
       endif()
 
@@ -514,7 +514,7 @@ macro(CheckX11)
           set(SDL_VIDEO_DRIVER_X11_XRANDR 1)
           set(HAVE_X11_XRANDR TRUE)
         else()
-          SDL_missing_dependency(XRANDR, SDL_X11_XRANDR)
+          SDL_missing_dependency(XRANDR SDL_X11_XRANDR)
         endif()
       endif()
 
@@ -528,7 +528,7 @@ macro(CheckX11)
           set(SDL_VIDEO_DRIVER_X11_XSCRNSAVER 1)
           set(HAVE_X11_XSCRNSAVER TRUE)
         else()
-          SDL_missing_dependency(XSCRNSAVER, SDL_X11_XSCRNSAVER)
+          SDL_missing_dependency(XSCRNSAVER SDL_X11_XSCRNSAVER)
         endif()
       endif()
 
@@ -537,7 +537,7 @@ macro(CheckX11)
           set(SDL_VIDEO_DRIVER_X11_XSHAPE 1)
           set(HAVE_X11_XSHAPE TRUE)
         else()
-          SDL_missing_dependency(XSHAPE, SDL_X11_XSHAPE)
+          SDL_missing_dependency(XSHAPE SDL_X11_XSHAPE)
         endif()
       endif()