From f4e2d278ba2225bbb2db6c3f42fce8369d856f65 Mon Sep 17 00:00:00 2001
From: Badlop <badlop@process-one.net>
Date: Thu, 23 Dec 2021 11:18:09 +0100
Subject: [PATCH] Dollar is unnecessary on arithmetic variables

---
 tools/captcha.sh | 50 ++++++++++++++++++++++++------------------------
 1 file changed, 25 insertions(+), 25 deletions(-)

diff --git a/tools/captcha.sh b/tools/captcha.sh
index 59df7fcc6..a619626cf 100755
--- a/tools/captcha.sh
+++ b/tools/captcha.sh
@@ -30,54 +30,54 @@ else
 fi
 
 get_random
-WAVE1_AMPLITUDE=$((2 + $R % 5))
+WAVE1_AMPLITUDE=$((2 + R % 5))
 get_random
-WAVE1_LENGTH=$((50 + $R % 25))
+WAVE1_LENGTH=$((50 + R % 25))
 get_random
-WAVE2_AMPLITUDE=$((2 + $R % 5))
+WAVE2_AMPLITUDE=$((2 + R % 5))
 get_random
-WAVE2_LENGTH=$((50 + $R % 25))
+WAVE2_LENGTH=$((50 + R % 25))
 get_random
-WAVE3_AMPLITUDE=$((2 + $R % 5))
+WAVE3_AMPLITUDE=$((2 + R % 5))
 get_random
-WAVE3_LENGTH=$((50 + $R % 25))
+WAVE3_LENGTH=$((50 + R % 25))
 get_random
-W1_LINE_START_Y=$((10 + $R % 40))
+W1_LINE_START_Y=$((10 + R % 40))
 get_random
-W1_LINE_STOP_Y=$((10 + $R % 40))
+W1_LINE_STOP_Y=$((10 + R % 40))
 get_random
-W2_LINE_START_Y=$((10 + $R % 40))
+W2_LINE_START_Y=$((10 + R % 40))
 get_random
-W2_LINE_STOP_Y=$((10 + $R % 40))
+W2_LINE_STOP_Y=$((10 + R % 40))
 get_random
-W3_LINE_START_Y=$((10 + $R % 40))
+W3_LINE_START_Y=$((10 + R % 40))
 get_random
-W3_LINE_STOP_Y=$((10 + $R % 40))
+W3_LINE_STOP_Y=$((10 + R % 40))
 
 get_random
-B1_LINE_START_Y=$(($R % 40))
+B1_LINE_START_Y=$((R % 40))
 get_random
-B1_LINE_STOP_Y=$(($R % 40))
+B1_LINE_STOP_Y=$((R % 40))
 get_random
-B2_LINE_START_Y=$(($R % 40))
+B2_LINE_START_Y=$((R % 40))
 get_random
-B2_LINE_STOP_Y=$(($R % 40))
-#B3_LINE_START_Y=$(($R % 40))
-#B3_LINE_STOP_Y=$(($R % 40))
+B2_LINE_STOP_Y=$((R % 40))
+#B3_LINE_START_Y=$((R % 40))
+#B3_LINE_STOP_Y=$((R % 40))
 
 get_random
-B1_LINE_START_X=$(($R % 20))
+B1_LINE_START_X=$((R % 20))
 get_random
-B1_LINE_STOP_X=$((100 + $R % 40))
+B1_LINE_STOP_X=$((100 + R % 40))
 get_random
-B2_LINE_START_X=$(($R % 20))
+B2_LINE_START_X=$((R % 20))
 get_random
-B2_LINE_STOP_X=$((100 + $R % 40))
-#B3_LINE_START_X=$(($R % 20))
-#B3_LINE_STOP_X=$((100 + $R % 40))
+B2_LINE_STOP_X=$((100 + R % 40))
+#B3_LINE_START_X=$((R % 20))
+#B3_LINE_STOP_X=$((100 + R % 40))
 
 get_random
-ROLL_X=$(($R % 40))
+ROLL_X=$((R % 40))
 
 convert -size 180x60 xc:none -pointsize 40 \
 	\( -clone 0 -fill white \