Fix grammar in doc string, RST markup

Doc/whatsnew/3.7.rst

@@ -179,5 +179,5 @@ Changes in the Python API
 CPython bytecode changes
 ------------------------
 
-* Added two new opcodes: :opcode:`LOAD_METHOD`` and :opcode:`CALL_METHOD`.
+* Added two new opcodes: :opcode:`LOAD_METHOD` and :opcode:`CALL_METHOD`.
   (Contributed by Yury Selivanov and INADA Naoki in :issue:`26110`.)

Objects/clinic/unicodeobject.c.h

@@ -406,7 +406,7 @@ PyDoc_STRVAR(unicode_join__doc__,
 "\n"
 "Concatenate any number of strings.\n"
 "\n"
-"The string whose method is called is inserted in between each given strings.\n"
+"The string whose method is called is inserted in between each given string.\n"
 "The result is returned as a new string.\n"
 "\n"
 "Example: \'.\'.join([\'ab\', \'pq\', \'rs\']) -> \'ab.pq.rs\'");
@@ -962,4 +962,4 @@ unicode_sizeof(PyObject *self, PyObject *Py_UNUSED(ignored))
 {
     return unicode_sizeof_impl(self);
 }
-/*[clinic end generated code: output=3d73f3dfd6ec7d83 input=a9049054013a1b77]*/
+/*[clinic end generated code: output=88b06f61edd282f9 input=a9049054013a1b77]*/

Objects/unicodeobject.c

@@ -12201,7 +12201,7 @@ str.join as unicode_join
 
 Concatenate any number of strings.
 
-The string whose method is called is inserted in between each given strings.
+The string whose method is called is inserted in between each given string.
 The result is returned as a new string.
 
 Example: '.'.join(['ab', 'pq', 'rs']) -> 'ab.pq.rs'
@@ -12209,7 +12209,7 @@ Example: '.'.join(['ab', 'pq', 'rs']) -> 'ab.pq.rs'
 
 static PyObject *
 unicode_join(PyObject *self, PyObject *iterable)
-/*[clinic end generated code: output=6857e7cecfe7bf98 input=d8311e5ccbafbeb6]*/
+/*[clinic end generated code: output=6857e7cecfe7bf98 input=2f70422bfb8fa189]*/
 {
     return PyUnicode_Join(self, iterable);
 }