improve a tiny bit the documentation of the --color parameter for the commands accepting it

4 files changed, 8 insertions, 2 deletions

diff --git a/quilt/diff.in b/quilt/diff.in
index f40f41a..6b4f9d6 100644
--- a/quilt/diff.in
+++ b/quilt/diff.in
@@ -69,7 +69,7 @@ included.
 	is invoked with the original and new file name as arguments.
 
 --color[=always|auto|never]
-	Use syntax coloring.
+	Use syntax coloring (auto activates it only if the output is a tty).
 
 --sort	Sort files by their name instead of preserving the original order.
 "
diff --git a/quilt/patches.in b/quilt/patches.in
index fe95300..a003f90 100644
--- a/quilt/patches.in
+++ b/quilt/patches.in
@@ -28,6 +28,9 @@ heuristic to determine which files are modified by unapplied patches.
 Note that this heuristic is much slower than scanning applied patches.)
 
 -v	Verbose, more user friendly output.
+
+--color[=always|auto|never]
+	Use syntax coloring (auto activates it only if the output is a tty).
 "
 		exit 0
 	else
diff --git a/quilt/push.in b/quilt/push.in
index 9759cf7..34a23f0 100644
--- a/quilt/push.in
+++ b/quilt/push.in
@@ -52,7 +52,7 @@ be used.
 	is not actually applied.
 
 --color[=always|auto|never]
-	Use syntax coloring.
+	Use syntax coloring (auto activates it only if the output is a tty).
 "
 		exit 0
 	else
diff --git a/quilt/series.in b/quilt/series.in
index f2fee9e..b1a0eca 100644
--- a/quilt/series.in
+++ b/quilt/series.in
@@ -25,6 +25,9 @@ usage()
 		printf $"
 Print the names of all patches in the series file.
 
+--color[=always|auto|never]
+	Use syntax coloring (auto activates it only if the output is a tty).
+	
 -v	Verbose, more user friendly output.
 "
 		exit 0