Fixed printing of GLFW version on usage and error.

tests/glfwinfo.c

@@ -172,16 +172,8 @@ static void list_extensions(int api, int major, int minor)
 static GLboolean valid_version(void)
 {
     int major, minor, revision;
-
     glfwGetVersion(&major, &minor, &revision);
 
-    printf("GLFW header version: %u.%u.%u\n",
-           GLFW_VERSION_MAJOR,
-           GLFW_VERSION_MINOR,
-           GLFW_VERSION_REVISION);
-
-    printf("GLFW library version: %u.%u.%u\n", major, minor, revision);
-
     if (major != GLFW_VERSION_MAJOR)
     {
         printf("*** ERROR: GLFW major version mismatch! ***\n");
@@ -191,10 +183,22 @@ static GLboolean valid_version(void)
     if (minor != GLFW_VERSION_MINOR || revision != GLFW_VERSION_REVISION)
         printf("*** WARNING: GLFW version mismatch! ***\n");
 
-    printf("GLFW library version string: \"%s\"\n", glfwGetVersionString());
     return GL_TRUE;
 }
 
+static void print_version(void)
+{
+    int major, minor, revision;
+    glfwGetVersion(&major, &minor, &revision);
+
+    printf("GLFW header version: %u.%u.%u\n",
+           GLFW_VERSION_MAJOR,
+           GLFW_VERSION_MINOR,
+           GLFW_VERSION_REVISION);
+    printf("GLFW library version: %u.%u.%u\n", major, minor, revision);
+    printf("GLFW library version string: \"%s\"\n", glfwGetVersionString());
+}
+
 int main(int argc, char** argv)
 {
     int ch, api, major, minor, revision;
@@ -328,6 +332,8 @@ int main(int argc, char** argv)
         }
     }
 
+    print_version();
+
     glfwWindowHint(GLFW_VISIBLE, GL_FALSE);
 
     window = glfwCreateWindow(200, 200, "Version", NULL, NULL);