6 files changed, 6 insertions, 6 deletions
diff --git a/library/demos/hello b/library/demos/hello
index c8ccd37..d10b8d5 100644
--- a/library/demos/hello
+++ b/library/demos/hello
@@ -1,6 +1,6 @@
 #!/bin/sh
 # the next line restarts using wish \
-exec wish "$0" "$@"
+exec wish "$0" ${1+"$@"}
 
 # hello --
 # Simple Tk script to create a button that prints "Hello, world".
diff --git a/library/demos/rmt b/library/demos/rmt
index 1be4b56..51886de 100644
--- a/library/demos/rmt
+++ b/library/demos/rmt
@@ -1,6 +1,6 @@
 #!/bin/sh
 # the next line restarts using wish \
-exec wish "$0" "$@"
+exec wish "$0" ${1+"$@"}
 
 # rmt --
 # This script implements a simple remote-control mechanism for
diff --git a/library/demos/square b/library/demos/square
index b7dd78f..08c362b 100644
--- a/library/demos/square
+++ b/library/demos/square
@@ -1,6 +1,6 @@
 #!/bin/sh
 # the next line restarts using wish \
-exec wish "$0" "$@"
+exec wish "$0" ${1+"$@"}
 
 # square --
 # This script generates a demo application containing only a "square"
diff --git a/library/demos/tcolor b/library/demos/tcolor
index bd20f7b..6e50c61 100644
--- a/library/demos/tcolor
+++ b/library/demos/tcolor
@@ -1,6 +1,6 @@
 #!/bin/sh
 # the next line restarts using wish \
-exec wish "$0" "$@"
+exec wish "$0" ${1+"$@"}
 
 # tcolor --
 # This script implements a simple color editor, where you can
diff --git a/library/demos/timer b/library/demos/timer
index 694227f..e10b840 100644
--- a/library/demos/timer
+++ b/library/demos/timer
@@ -1,6 +1,6 @@
 #!/bin/sh
 # the next line restarts using wish \
-exec wish "$0" "$@"
+exec wish "$0" ${1+"$@"}
 
 # timer --
 # This script generates a counter with start and stop buttons.
diff --git a/library/demos/widget b/library/demos/widget
index 7dd8ab3..d58f086 100644
--- a/library/demos/widget
+++ b/library/demos/widget
@@ -1,6 +1,6 @@
 #!/bin/sh
 # the next line restarts using wish \
-exec wish "$0" "$@"
+exec wish "$0" ${1+"$@"}
 
 # widget --
 # This script demonstrates the various widgets provided by Tk, along with many