[1.4.x] Fixed spelling mistake in file docs.

Backport of a3e88e64a4 from master

1 files changed, 1 insertions, 1 deletions

diff --git a/docs/ref/files/storage.txt b/docs/ref/files/storage.txt
index 252e8e4d52..f85d9297d1 100644
--- a/docs/ref/files/storage.txt
+++ b/docs/ref/files/storage.txt
@@ -92,7 +92,7 @@ The Storage Class
         extension.
 
         Previously, an underscore followed by a number (e.g. ``"_1"``, ``"_2"``,
-        etc.) was appended to the filename until an avaible name in the
+        etc.) was appended to the filename until an available name in the
         destination directory was found. A malicious user could exploit this
         deterministic algorithm to create a denial-of-service attack.