Merge pull request #5478 from averagegeek/patch-1

error in string comparison

doc/faqs/how-to-install-composer-programmatically.md

@@ -13,7 +13,7 @@ EXPECTED_SIGNATURE=$(wget https://composer.github.io/installer.sig -O - -q)
 php -r "copy('https://getcomposer.org/installer', 'composer-setup.php');"
 ACTUAL_SIGNATURE=$(php -r "echo hash_file('SHA384', 'composer-setup.php');")
 
-if [ "$EXPECTED_SIGNATURE" == "$ACTUAL_SIGNATURE" ]
+if [ "$EXPECTED_SIGNATURE" = "$ACTUAL_SIGNATURE" ]
 then
     php composer-setup.php --quiet
     RESULT=$?
@@ -39,4 +39,4 @@ wget https://raw.githubusercontent.com/composer/getcomposer.org/1b137f8bf6db3e79
 ```
 
 You may replace the commit hash by whatever the last commit hash is on
-https://github.com/composer/getcomposer.org/commits/master
+https://github.com/composer/getcomposer.org/commits/master