We no longer have two doc systems, move sphinx_doc_src back to doc_src

doc_src/cmds/builtin.rst

@@ -0,0 +1,34 @@
+.. _cmd-builtin:
+
+builtin - run a builtin command
+===============================
+
+Synopsis
+--------
+
+::
+
+    builtin [OPTIONS...] BUILTINNAME
+    builtin --query BUILTINNAMES...
+
+Description
+-----------
+
+``builtin`` forces the shell to use a builtin command, rather than a function or program.
+
+The following parameters are available:
+
+- ``-n`` or ``--names`` List the names of all defined builtins
+- ``-q`` or ``--query`` tests if any of the specified builtins exists
+
+
+Example
+-------
+
+
+
+::
+
+    builtin jobs
+    # executes the jobs builtin, even if a function named jobs exists
+