in got.1, clarify that rebasing of branches with zero local changes is normal
diff --git a/got/got.1 b/got/got.1
index 62c5d24..05a4896 100644
--- a/got/got.1
+++ b/got/got.1
@@ -940,8 +940,8 @@ When
.Cm got rebase
is used as intended, the specified
.Ar branch
-contains changes made in local commits that are not yet visible in any
-other repositories.
+represents a local commit history and may already contain changes
+that are not yet visible in any other repositories.
The work tree's current branch, which must be set with
.Cm got update -b
before starting the
@@ -949,7 +949,8 @@ before starting the
operation, represents a branch from a remote repository which shares
a common history with the specified
.Ar branch
-but has at some point diverged due to commits added to the remote repository.
+but has progressed, and perhaps diverged, due to commits added to the
+remote repository.
.Pp
Rebased commits are accumulated on a temporary branch which the work tree
will remain switched to throughout the entire rebase operation.