[1.7.x] Fixed #22405 -- Fixed string error in models/queries docs.
[1.7.x] Fixed #22405 -- Fixed string error in models/queries docs.

Backport of 36de29200e1ea713c278f7672ab1790e1500c423 from master.

oscaro/django,oscaro/django,jyotsna1820/django,jyotsna1820/django,oscaro/django,jyotsna1820/django,oscaro/django,jyotsna1820/django