test-bot pathname: use Utils.popen_read instead of backticks

Closes #37418.

Signed-off-by: Xu Cheng <xucheng@me.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/Library/Homebrew/extend/pathname.rb b/Library/Homebrew/extend/pathname.rb
index 2ca8b6e5f..6e7a8ef58 100644
--- a/Library/Homebrew/extend/pathname.rb
+++ b/Library/Homebrew/extend/pathname.rb
@@ -413,10 +413,11 @@ class Pathname
   end
 
   def abv
-    out=''
-    n=`find #{to_s} -type f ! -name .DS_Store | wc -l`.to_i
+    out = ""
+    n = Utils.popen_read("find", expand_path.to_s, "-type", "f", "!", "-name", ".DS_Store").split("\n").size
     out << "#{n} files, " if n > 1
-    out << `/usr/bin/du -hs #{to_s} | cut -d"\t" -f1`.strip
+    out << Utils.popen_read("/usr/bin/du", "-hs", expand_path.to_s).split("\t")[0]
+    out
   end
 
   # We redefine these private methods in order to add the /o modifier to