dgit(1): Document that rules clean sometimes not run

Signed-off-by: Ian Jackson <ijackson@chiark.greenend.org.uk>

diff --git a/dgit.1 b/dgit.1
index 4521cd30771016bba1037f89f7857800b9132649..1ee02301ffa02ffe18e22975dd0102599a9f73ec 100644 (file)
--- a/dgit.1
+++ b/dgit.1
@@ -591,6 +591,13 @@ the build-dependencies are not checked
 .BR -d
 to dpkg-buildpackage),
 which violates policy, but may work in practice.
+
+The rules clean target will only be run if it is needed:
+when dgit is going to build source or binary packages
+from your working tree,
+rather than from your git branch
+(for example because of --include-dirty
+or because the binary package build uses your working tree).
 .TP
 .BR -N " | " --new
 The package is or may be new in this suite.  Without this, dgit will