Remove print statement in favor of print() function in docs and examples

<!-- Provide a general summary of your proposed changes in the Title field above -->

### Description
<!-- Describe your changes in detail -->
Remove print statements

### Checklist
<!-- go over following points. check them with an `x` if they do apply, (they turn into clickable checkboxes once the PR is submitted, so no need to do everything at once)

-->

This pull request is:

- [X] A documentation / typographical error fix
	- Good to go, no issue or tests are needed
- [ ] A short code fix
	- please include the issue number, and create an issue if none exists, which
	  must include a complete example of the issue.  one line code fixes without an
	  issue and demonstration will not be accepted.
	- Please include: `Fixes: #<issue number>` in the commit message
	- please include tests.   one line code fixes without tests will not be accepted.
- [ ] A new feature implementation
	- please include the issue number, and create an issue if none exists, which must
	  include a complete example of how the feature would look.
	- Please include: `Fixes: #<issue number>` in the commit message
	- please include tests.

**Have a nice day!**

Closes: #5166
Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/5166
Pull-request-sha: 04a7394f71298322188f0861b4dfe93e5485839d

Change-Id: Ib90a59fac929661a18748c6e44966fb87e3978c6

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/sqlalchemy/sql/functions.py b/lib/sqlalchemy/sql/functions.py
index 137b1605a..c1720b4c3 100644
--- a/lib/sqlalchemy/sql/functions.py
+++ b/lib/sqlalchemy/sql/functions.py
@@ -674,7 +674,7 @@ class GenericFunction(util.with_metaclass(_GenericMeta, Function)):
         class as_utc(GenericFunction):
             type = DateTime
 
-        print select([func.as_utc()])
+        print(select([func.as_utc()]))
 
     User-defined generic functions can be organized into
     packages by specifying the "package" attribute when defining
@@ -691,7 +691,7 @@ class GenericFunction(util.with_metaclass(_GenericMeta, Function)):
     The above function would be available from :data:`.func`
     using the package name ``time``::
 
-        print select([func.time.as_utc()])
+        print(select([func.time.as_utc()]))
 
     A final option is to allow the function to be accessed
     from one name in :data:`.func` but to render as a different name.