Use popen wrapper

Closes Homebrew/homebrew#30678.

2 files changed, 4 insertions, 4 deletions

diff --git a/Library/Homebrew/cmd/bottle.rb b/Library/Homebrew/cmd/bottle.rb
index 91901292b..7cc493506 100644
--- a/Library/Homebrew/cmd/bottle.rb
+++ b/Library/Homebrew/cmd/bottle.rb
@@ -63,7 +63,7 @@ module Homebrew
       end
 
       # Use strings to search through the file for each string
-      IO.popen("strings -t x - '#{file}'", "rb") do |io|
+      Utils.popen_read("strings", "-t", "x", "-", file.to_s) do |io|
         until io.eof?
           str = io.readline.chomp
 
@@ -168,8 +168,8 @@ module Homebrew
           prefix_check = HOMEBREW_PREFIX
         end
 
-        relocatable = !keg_contains(prefix_check, keg)
-        relocatable = !keg_contains(HOMEBREW_CELLAR, keg) && relocatable
+        relocatable = !keg_contains(prefix_check.to_s, keg)
+        relocatable = !keg_contains(HOMEBREW_CELLAR.to_s, keg) && relocatable
         puts if !relocatable && ARGV.verbose?
       rescue Interrupt
         ignore_interrupts { bottle_path.unlink if bottle_path.exist? }
diff --git a/Library/Homebrew/cmd/doctor.rb b/Library/Homebrew/cmd/doctor.rb
index fd40cf6c6..3d5959ad2 100644
--- a/Library/Homebrew/cmd/doctor.rb
+++ b/Library/Homebrew/cmd/doctor.rb
@@ -27,7 +27,7 @@ class Volumes
   def get_mounts path=nil
     vols = []
     # get the volume of path, if path is nil returns all volumes
-    raw_df = IO.popen("/bin/df -P #{path}", "rb", &:read)
+    raw_df = Utils.popen_read("/bin/df", "-P", path, &:read)
     raw_df.split("\n").each do |line|
       case line
       # regex matches: /dev/disk0s2   489562928 440803616  48247312    91%    /