spelling cleanup

source/blender/python/intern/bpy_interface.c

@@ -96,7 +96,7 @@ void bpy_context_update(bContext *C)
 {
 	BPy_SetContext(C);
 	bpy_import_main_set(CTX_data_main(C));
-	BPY_modules_update(C); /* can give really bad results if this isnt here */
+	BPY_modules_update(C); /* can give really bad results if this isn't here */
 }
 
 void bpy_context_set(bContext *C, PyGILState_STATE *gilstate)
@@ -497,7 +497,7 @@ int BPY_button_exec(bContext *C, const char *expr, double *value, const short ve
 
 	mod = PyImport_ImportModule("math");
 	if (mod) {
-		PyDict_Merge(py_dict, PyModule_GetDict(mod), 0); /* 0 - dont overwrite existing values */
+		PyDict_Merge(py_dict, PyModule_GetDict(mod), 0); /* 0 - don't overwrite existing values */
 		Py_DECREF(mod);
 	}
 	else { /* highly unlikely but possibly */
@@ -705,7 +705,7 @@ int BPY_context_member_get(bContext *C, const char *member, bContextDataResult *
 
 #ifdef WITH_PYTHON_MODULE
 #include "BLI_fileops.h"
-/* TODO, reloading the module isnt functional at the moment. */
+/* TODO, reloading the module isn't functional at the moment. */
 
 static void bpy_module_free(void *mod);
 extern int main_python_enter(int argc, const char **argv);
@@ -782,7 +782,7 @@ PyInit_bpy(void)
 	 *    we may end up having to rename this module so there is no naming conflict here eg:
 	 *    'from blender import bpy'
 	 *
-	 * 3) we dont know the filename at this point, workaround by assigning a dummy value
+	 * 3) we don't know the filename at this point, workaround by assigning a dummy value
 	 *    which calls back when its freed so the real loading can take place.
 	 */