Fix misuse of PyUnicode_GET_SIZE() => PyUnicode_GET_LENGTH()

And PyUnicode_GetSize() => PyUnicode_GetLength()
diff --git a/Modules/_csv.c b/Modules/_csv.c
index c02ee38..443309c 100644
--- a/Modules/_csv.c
+++ b/Modules/_csv.c
@@ -207,7 +207,7 @@
         *target = '\0';
         if (src != Py_None) {
             Py_ssize_t len;
-            len = PyUnicode_GetSize(src);
+            len = PyUnicode_GetLength(src);
             if (len > 1) {
                 PyErr_Format(PyExc_TypeError,
                     "\"%s\" must be an 1-character string",
diff --git a/Modules/_datetimemodule.c b/Modules/_datetimemodule.c
index 316e1d7..b384233 100644
--- a/Modules/_datetimemodule.c
+++ b/Modules/_datetimemodule.c
@@ -1080,7 +1080,7 @@
     PyObject *tzinfo = get_tzinfo_member(object);
     PyObject *Zreplacement = PyUnicode_FromStringAndSize(NULL, 0);
     _Py_IDENTIFIER(replace);
-	
+
     if (Zreplacement == NULL)
         return NULL;
     if (tzinfo == Py_None || tzinfo == NULL)
@@ -2673,7 +2673,7 @@
         return NULL;
 
     /* if the format is zero length, return str(self) */
-    if (PyUnicode_GetSize(format) == 0)
+    if (PyUnicode_GetLength(format) == 0)
         return PyObject_Str((PyObject *)self);
 
     return _PyObject_CallMethodId((PyObject *)self, &PyId_strftime, "O", format);
diff --git a/Modules/_gestalt.c b/Modules/_gestalt.c
index a45780f..cd30683 100644
--- a/Modules/_gestalt.c
+++ b/Modules/_gestalt.c
@@ -33,7 +33,7 @@
 convert_to_OSType(PyObject *v, OSType *pr)
 {
     uint32_t tmp;
-    if (!PyUnicode_Check(v) || PyUnicode_GetSize(v) != 4) {
+    if (!PyUnicode_Check(v) || PyUnicode_GetLength(v) != 4) {
     PyErr_SetString(PyExc_TypeError,
                     "OSType arg must be string of 4 chars");
     return 0;
diff --git a/Modules/_io/stringio.c b/Modules/_io/stringio.c
index 7749990..c4794c9 100644
--- a/Modules/_io/stringio.c
+++ b/Modules/_io/stringio.c
@@ -730,7 +730,7 @@
        and copy it */
     self->string_size = 0;
     if (value && value != Py_None)
-        value_len = PyUnicode_GetSize(value);
+        value_len = PyUnicode_GetLength(value);
     else
         value_len = 0;
     if (value_len > 0) {
diff --git a/Modules/_io/textio.c b/Modules/_io/textio.c
index 91a3891..07dad3a 100644
--- a/Modules/_io/textio.c
+++ b/Modules/_io/textio.c
@@ -2144,7 +2144,7 @@
         textiowrapper_set_decoded_chars(self, decoded);
 
         /* Skip chars_to_skip of the decoded characters. */
-        if (PyUnicode_GetSize(self->decoded_chars) < cookie.chars_to_skip) {
+        if (PyUnicode_GetLength(self->decoded_chars) < cookie.chars_to_skip) {
             PyErr_SetString(PyExc_IOError, "can't restore logical file position");
             goto fail;
         }
@@ -2208,7 +2208,7 @@
         goto fail;
 
     if (self->decoder == NULL || self->snapshot == NULL) {
-        assert (self->decoded_chars == NULL || PyUnicode_GetSize(self->decoded_chars) == 0);
+        assert (self->decoded_chars == NULL || PyUnicode_GetLength(self->decoded_chars) == 0);
         return posobj;
     }