Remove consecutive blank lines from markdown files

For the sake of consistency, removes any extraneous
consecutive blank lines from the doc suite.

1 files changed, 2 insertions, 3 deletions

diff --git a/doc/development/shell_commands.md b/doc/development/shell_commands.md
index 73893f9dd46..7bdf676be58 100644
--- a/doc/development/shell_commands.md
+++ b/doc/development/shell_commands.md
@@ -190,7 +190,7 @@ A check like this could have avoided CVE-2013-4583.
 
 ## Properly anchor regular expressions to the start and end of strings
 
-When using regular expressions to validate user input that is passed as an argument to a shell command, make sure to use the `\A` and `\z` anchors that designate the start and end of the string, rather than `^` and `$`, or no anchors at all. 
+When using regular expressions to validate user input that is passed as an argument to a shell command, make sure to use the `\A` and `\z` anchors that designate the start and end of the string, rather than `^` and `$`, or no anchors at all.
 
 If you don't, an attacker could use this to execute commands with potentially harmful effect.
 
@@ -198,7 +198,7 @@ For example, when a project's `import_url` is validated like below, the user cou
 
 ```ruby
 validates :import_url, format: { with: URI.regexp(%w(ssh git http https)) }
-# URI.regexp(%w(ssh git http https)) roughly evaluates to /(ssh|git|http|https):(something_that_looks_like_a_url)/ 
+# URI.regexp(%w(ssh git http https)) roughly evaluates to /(ssh|git|http|https):(something_that_looks_like_a_url)/
 ```
 
 Suppose the user submits the following as their import URL:
@@ -211,7 +211,6 @@ Since there are no anchors in the used regular expression, the `git:/tmp/lol` in
 
 When importing, GitLab would execute the following command, passing the `import_url` as an argument:
 
-
 ```sh
 git clone file://git:/tmp/lol
 ```