git-fast-import.adoc: add missing LF in the BNF

Signed-off-by: Luke Shumaker <[email protected]>
Signed-off-by: Christian Couder <[email protected]>

Author: LukeShu

Documentation/git-fast-import.adoc

@@ -437,7 +437,7 @@ change to the project.
 	original-oid?
 	('author' (SP <name>)? SP LT <email> GT SP <when> LF)?
 	'committer' (SP <name>)? SP LT <email> GT SP <when> LF
-	('encoding' SP <encoding>)?
+	('encoding' SP <encoding> LF)?
 	data
 	('from' SP <commit-ish> LF)?
 	('merge' SP <commit-ish> LF)*