Fix unintended double spaces in DSL documentation

bundler/lib/bundler/man/gemfile.5

@@ -100,7 +100,7 @@ Each application \fImay\fR specify a Ruby engine version\. If an engine version
 .
 .nf
 
-ruby "1\.8\.7", engine:  "jruby", engine_version:  "1\.6\.7"
+ruby "1\.8\.7", engine: "jruby", engine_version: "1\.6\.7"
 .
 .fi
 .
@@ -113,7 +113,7 @@ Each application \fImay\fR specify a Ruby patchlevel\.
 .
 .nf
 
-ruby "2\.0\.0", patchlevel:  "247"
+ruby "2\.0\.0", patchlevel: "247"
 .
 .fi
 .
@@ -156,9 +156,9 @@ Each \fIgem\fR \fBMAY\fR specify files that should be used when autorequiring vi
 .
 .nf
 
-gem "redis", require:  ["redis/connection/hiredis", "redis"]
-gem "webmock", require:  false
-gem "byebug", require:  true
+gem "redis", require: ["redis/connection/hiredis", "redis"]
+gem "webmock", require: false
+gem "byebug", require: true
 .
 .fi
 .
@@ -172,8 +172,8 @@ The argument defaults to the name of the gem\. For example, these are identical:
 .nf
 
 gem "nokogiri"
-gem "nokogiri", require:  "nokogiri"
-gem "nokogiri", require:  true
+gem "nokogiri", require: "nokogiri"
+gem "nokogiri", require: true
 .
 .fi
 .
@@ -186,8 +186,8 @@ Each \fIgem\fR \fBMAY\fR specify membership in one or more groups\. Any \fIgem\f
 .
 .nf
 
-gem "rspec", group:  :test
-gem "wirble", groups:  [:development, :test]
+gem "rspec", group: :test
+gem "wirble", groups: [:development, :test]
 .
 .fi
 .
@@ -320,9 +320,9 @@ As with groups, you can specify one or more platforms:
 .
 .nf
 
-gem "weakling",   platforms:  :jruby
-gem "ruby\-debug", platforms:  :mri_18
-gem "nokogiri",   platforms:  [:mri_18, :jruby]
+gem "weakling",   platforms: :jruby
+gem "ruby\-debug", platforms: :mri_18
+gem "nokogiri",   platforms: [:mri_18, :jruby]
 .
 .fi
 .
@@ -338,7 +338,7 @@ You can select an alternate Rubygems repository for a gem using the \':source\'
 .
 .nf
 
-gem "some_internal_gem", source:  "https://gems\.example\.com"
+gem "some_internal_gem", source: "https://gems\.example\.com"
 .
 .fi
 .
@@ -393,7 +393,7 @@ If a git repository does have a \fB\.gemspec\fR for the gem you attached it to,
 .
 .nf
 
-gem "rails", "2\.3\.8", git:  "https://github\.com/rails/rails\.git"
+gem "rails", "2\.3\.8", git: "https://github\.com/rails/rails\.git"
 # bundle install will fail, because the \.gemspec in the rails
 # repository\'s master branch specifies version 3\.0\.0
 .
@@ -454,7 +454,7 @@ A custom git source can be defined via the \fBgit_source\fR method\. Provide the
 .nf
 
 git_source(:stash){ |repo_name| "https://stash\.corp\.acme\.pl/#{repo_name}\.git" }
-gem \'rails\', stash:  \'forks/rails\'
+gem \'rails\', stash: \'forks/rails\'
 .
 .fi
 .
@@ -467,7 +467,7 @@ In addition, if you wish to choose a specific branch:
 .
 .nf
 
-gem "rails", stash:  "forks/rails", branch:  "branch_name"
+gem "rails", stash: "forks/rails", branch: "branch_name"
 .
 .fi
 .
@@ -483,8 +483,8 @@ If the git repository you want to use is hosted on GitHub and is public, you can
 .
 .nf
 
-gem "rails", github:  "rails/rails"
-gem "rails", github:  "rails"
+gem "rails", github: "rails/rails"
+gem "rails", github: "rails"
 .
 .fi
 .
@@ -497,7 +497,7 @@ Are both equivalent to
 .
 .nf
 
-gem "rails", git:  "git://github\.com/rails/rails\.git"
+gem "rails", git: "git://github\.com/rails/rails\.git"
 .
 .fi
 .
@@ -513,7 +513,7 @@ You can also directly pass a pull request URL:
 .
 .nf
 
-gem "rails", github:  "https://github\.com/rails/rails/pull/43753"
+gem "rails", github: "https://github\.com/rails/rails/pull/43753"
 .
 .fi
 .
@@ -526,7 +526,7 @@ Which is equivalent to:
 .
 .nf
 
-gem "rails", github:  "rails/rails", branch: "refs/pull/43753/head"
+gem "rails", github: "rails/rails", branch: "refs/pull/43753/head"
 .
 .fi
 .
@@ -539,7 +539,7 @@ If the git repository you want to use is hosted as a GitHub Gist and is public,
 .
 .nf
 
-gem "the_hatch", gist:  "4815162342"
+gem "the_hatch", gist: "4815162342"
 .
 .fi
 .
@@ -552,7 +552,7 @@ Is equivalent to:
 .
 .nf
 
-gem "the_hatch", git:  "https://gist\.github\.com/4815162342\.git"
+gem "the_hatch", git: "https://gist\.github\.com/4815162342\.git"
 .
 .fi
 .
@@ -568,8 +568,8 @@ If the git repository you want to use is hosted on Bitbucket and is public, you
 .
 .nf
 
-gem "rails", bitbucket:  "rails/rails"
-gem "rails", bitbucket:  "rails"
+gem "rails", bitbucket: "rails/rails"
+gem "rails", bitbucket: "rails"
 .
 .fi
 .
@@ -582,7 +582,7 @@ Are both equivalent to
 .
 .nf
 
-gem "rails", git:  "https://rails@bitbucket\.org/rails/rails\.git"
+gem "rails", git: "https://rails@bitbucket\.org/rails/rails\.git"
 .
 .fi
 .
@@ -604,7 +604,7 @@ Unlike \fB:git\fR, bundler does not compile C extensions for gems specified as p
 .
 .nf
 
-gem "rails", path:  "vendor/rails"
+gem "rails", path: "vendor/rails"
 .
 .fi
 .
@@ -648,7 +648,7 @@ platforms :ruby do
   gem "sqlite3"
 end
 
-group :development, optional:  true do
+group :development, optional: true do
   gem "wirble"
   gem "faker"
 end