Make tests of tempdir var more explicit

I'm pretty sure I've seen at least one implementation of sh(1) upset
about [ "$var" ] over [ -n "$var" ]

4 files changed, 4 insertions, 4 deletions

diff --git a/bin/rndl b/bin/rndl
index c4b9e29c..cb8ac5cc 100755
--- a/bin/rndl
+++ b/bin/rndl
@@ -3,7 +3,7 @@
 if [ "$#" -eq 0 ] ; then
     td=
     cleanup() {
-        [ "$td" ] && rm -fr -- "$td"
+        [ -n "$td" ] && rm -fr -- "$td"
         if [ "$1" != EXIT ] ; then
             trap - "$1"
             kill "-$1" "$$"
diff --git a/bin/tlcs b/bin/tlcs
index 80fca373..dcd76c7d 100755
--- a/bin/tlcs
+++ b/bin/tlcs
@@ -70,7 +70,7 @@ fi
 # Temporary directory for the FIFOs
 td=
 cleanup() {
-    [ "$td" ] && rm -fr -- "$td"
+    [ -n "$td" ] && rm -fr -- "$td"
     if [ "$1" != EXIT ] ; then
         trap - "$1"
         kill "-$1" "$$"
diff --git a/bin/try b/bin/try
index f0cfddf5..f0ba317d 100755
--- a/bin/try
+++ b/bin/try
@@ -29,7 +29,7 @@ fi
 # Create a buffer file for the error output, and clean up the file when we exit
 td=
 cleanup() {
-    [ "$td" ] && rm -fr -- "$td"
+    [ -n "$td" ] && rm -fr -- "$td"
     if [ "$1" != EXIT ] ; then
         trap - "$1"
         kill "-$1" "$$"
diff --git a/bin/urlc b/bin/urlc
index 351d8623..b898b99c 100755
--- a/bin/urlc
+++ b/bin/urlc
@@ -9,7 +9,7 @@ tm=${URLCHECK_TIMEOUT:-8}
 # exit
 td=
 cleanup() {
-    [ "$td" ] && rm -fr -- "$td"
+    [ -n "$td" ] && rm -fr -- "$td"
     if [ "$1" != EXIT ] ; then
         trap - "$1"
         kill "-$1" "$$"