Fix misspellings on line 21 and line 24.

Summary: Fix what I believe to be misspellings of 'Manager' on lines 21 and 24.

Test Plan: Build Enlightenement...

Reviewers: raster, zmike

CC: cedric

Differential Revision: https://phab.enlightenment.org/D1003

src/bin/e_xsettings.c

@@ -18,10 +18,10 @@
 
 #define OFFSET_ADD(n) ((n + 4 - 1) & (~(4 - 1)))
 
-typedef struct _Settings_Manger Settings_Manager;
+typedef struct _Settings_Manager Settings_Manager;
 typedef struct _Setting         Setting;
 
-struct _Settings_Manger
+struct _Settings_Manager
 {
    E_Manager     *man;
    Ecore_X_Window selection;