PSP: Fixed error messages.

src/thread/psp/SDL_syssem.c

@@ -108,7 +108,7 @@ int SDL_SemWaitTimeout(SDL_sem *sem, Uint32 timeout)
                case SCE_KERNEL_ERROR_WAIT_TIMEOUT:
                        return SDL_MUTEX_TIMEDOUT;
                default:
-                       return SDL_SetError("WaitForSingleObject() failed");
+                       return SDL_SetError("sceKernelWaitSema() failed");
     }
 }
 

src/video/psp/SDL_pspgl.c

@@ -174,7 +174,7 @@ int
 PSP_GL_SwapWindow(_THIS, SDL_Window * window)
 {
     if (!eglSwapBuffers(_this->gl_data->display, _this->gl_data->surface)) {
-        return SDL_SetError("!eglSwapBuffers() failed");
+        return SDL_SetError("eglSwapBuffers() failed");
     }
     return 0;
 }

src/video/psp/SDL_pspvideo.c

@@ -297,7 +297,7 @@ PSP_GetWindowWMInfo(_THIS, SDL_Window * window, struct SDL_SysWMinfo *info)
     if (info->version.major <= SDL_MAJOR_VERSION) {
         return SDL_TRUE;
     } else {
-        SDL_SetError("application not compiled with SDL %d.%d",
+        SDL_SetError("Application not compiled with SDL %d.%d",
                      SDL_MAJOR_VERSION, SDL_MINOR_VERSION);
         return SDL_FALSE;
     }