got.1: clarify how checkout -b and -c options interact
diff --git a/got/got.1 b/got/got.1
index 5d1c026..b137227 100644
--- a/got/got.1
+++ b/got/got.1
@@ -136,13 +136,14 @@ The options for
are as follows:
.Bl -tag -width Ds
.It Fl b Ar branch
-Check out files from the specified
+Check out files from a commit on the specified
.Ar branch .
If this option is not specified, a branch resolved via the repository's HEAD
reference will be used.
.It Fl c Ar commit
Check out files from the specified
-.Ar commit .
+.Ar commit
+on the selected branch.
The expected argument is a commit ID SHA1 hash or an existing reference
which will be resolved to a commit ID.
An abbreviated hash argument will be expanded to a full SHA1 hash