test/t: Avoid trailing backslash in Makefile.am's to appease automake

Author: scop

test/generate

@@ -42,13 +42,16 @@ while read -r line; do
     if [[ $in_extra_dist ]]; then
         if [[ $line != $'\t'* ]]; then
             if [[ ! $added ]]; then
-                echo -e "\ttest_$file.py \\"
+                echo -e "\ttest_$file.py"
                 added=true
             fi
             in_extra_dist=
-        elif [[ ! $added && $line > $'\t'test_$file.py ]]; then
-            echo -e "\ttest_$file.py \\"
-            added=true
+        else
+            [[ $line == *\\ ]] || line="$line \\"
+            if [[ ! $added && $line > $'\t'test_$file.py ]]; then
+                echo -e "\ttest_$file.py \\"
+                added=true
+            fi
         fi
         echo "$line"
     else

test/t/Makefile.am

@@ -659,6 +659,6 @@ EXTRA_DIST = \
 	test_yum_arch.py \
 	test_yum.py \
 	test_zopflipng.py \
-	test_zopfli.py \
+	test_zopfli.py
 
 all:

test/t/unit/Makefile.am

@@ -10,6 +10,6 @@ EXTRA_DIST = \
 	test_unit_ip_addresses.py \
 	test_unit_parse_help.py \
 	test_unit_parse_usage.py \
-	test_unit_tilde.py \
+	test_unit_tilde.py
 
 all: