completion: Use consistent if [...] convention, not "test"

diff --git a/Documentation/git-diff-tree.txt b/Documentation/git-diff-tree.txt
index fdf8e7b27755e7767550e1ccc33e6f80265244a3..23b7abd3c6b0e02eb325983eaad66598c42fc8be 100644 (file)
--- a/Documentation/git-diff-tree.txt
+++ b/Documentation/git-diff-tree.txt
@@ -63,7 +63,7 @@ and terminated by a newline) is printed before the difference.  When
 comparing commits, the ID of the first (or only) commit, followed by a
 newline, is printed.
 +
-The following flags further affects the behavior when comparing
+The following flags further affect the behavior when comparing
 commits (but not trees).
 
 -m::