Remove redundant semicolon (#4992)

**Which issue(s) this PR fixes**: 
Fixes #

**What this PR does / why we need it**: 
This PR will removes unnecessary trailing semicolons to improve code
style.

**Docs Changes**:
Not needed.

**Release Note**: 
Code refactoring

Signed-off-by: Shizuo Fujita <fujita@clear-code.com>

Author: Watson1978

lib/fluent/plugin/base.rb

@@ -84,7 +84,7 @@ def acquire_worker_lock(name)
           yield
         end
         # Update access time to prevent tmpwatch from deleting a lock file.
-        FileUtils.touch(lock_path);
+        FileUtils.touch(lock_path)
       end
 
       def string_safe_encoding(str)

test/log/test_console_adapter.rb

@@ -73,7 +73,7 @@ def test_args(level)
   def test_options(level)
     @console_logger.send(level, "subject", kwarg1: "opt1", kwarg2: "opt2")
     lines = @logdev.logs[0].split("\n")
-    args = JSON.parse(lines[1..].collect { |str| str.sub(/\s+\|/, "") }.join("\n"));
+    args = JSON.parse(lines[1..].collect { |str| str.sub(/\s+\|/, "") }.join("\n"))
     assert_equal([
                    1,
                    "#{@timestamp_str} [#{level}]:   0.0s: subject",

test/plugin/test_base.rb

@@ -118,7 +118,7 @@ class FluentPluginBaseTest::DummyPlugin2 < Fluent::Plugin::TestBase
     Dir.mktmpdir("test-fluentd-lock-") do |lock_dir|
       ENV['FLUENTD_LOCK_DIR'] = lock_dir
       p = FluentPluginBaseTest::DummyPlugin.new
-      path = p.get_lock_path("Aa\\|=~/_123");
+      path = p.get_lock_path("Aa\\|=~/_123")
 
       assert_equal lock_dir, File.dirname(path)
       assert_equal "fluentd-Aa______123.lock", File.basename(path)

test/plugin/test_output_as_buffered_backup.rb

@@ -195,7 +195,7 @@ def wait_flush(target_file)
         chunk_id = nil
         @i.configure(config_element('ROOT', '', {'@id' => id}, [config_element('buffer', 'tag', hash)]))
         @i.register(:write) { |chunk|
-          chunk_id = chunk.unique_id;
+          chunk_id = chunk.unique_id
           raise error_class, "yay, your #write must fail"
         }
 
@@ -220,7 +220,7 @@ def wait_flush(target_file)
         secconf = config_element('secondary','',{'@type' => 'backup_output'})
         @i.configure(config_element('ROOT', '', {'@id' => id}, [config_element('buffer', 'tag', hash), secconf]))
         @i.register(:write) { |chunk|
-          chunk_id = chunk.unique_id;
+          chunk_id = chunk.unique_id
           raise Fluent::UnrecoverableError, "yay, your #write must fail"
         }
 
@@ -242,7 +242,7 @@ def wait_flush(target_file)
         secconf = config_element('secondary', '', { '@type' => 'backup_output' })
         @i.configure(config_element('ROOT', '', { '@id' => id }, [config_element('buffer', 'tag', hash), secconf]))
         @i.register(:write) { |chunk|
-          chunk_id = chunk.unique_id;
+          chunk_id = chunk.unique_id
           raise Fluent::UnrecoverableError, "yay, your #write must fail"
         }
 
@@ -267,7 +267,7 @@ def wait_flush(target_file)
         secconf = config_element('secondary', '', { '@type' => 'backup_output' })
         @i.configure(config_element('ROOT', '', { '@id' => id }, [config_element('buffer', 'tag', hash), secconf]))
         @i.register(:write) { |chunk|
-          chunk_id = chunk.unique_id;
+          chunk_id = chunk.unique_id
           raise Fluent::UnrecoverableError, "yay, your #write must fail"
         }
 
@@ -293,7 +293,7 @@ def wait_flush(target_file)
         secconf = config_element('secondary','',{'@type' => 'backup_output2'})
         @i.configure(config_element('ROOT', '', {'@id' => id}, [config_element('buffer', 'tag', hash), secconf]))
         @i.register(:write) { |chunk|
-          chunk_id = chunk.unique_id;
+          chunk_id = chunk.unique_id
           raise Fluent::UnrecoverableError, "yay, your #write must fail"
         }
         @i.secondary.register(:write) { |chunk|
@@ -322,7 +322,7 @@ def wait_flush(target_file)
         secconf = config_element('secondary','',{'@type' => 'backup_async_output'})
         @i.configure(config_element('ROOT', '', {'@id' => id}, [config_element('buffer', 'tag', hash), secconf]))
         @i.register(:write) { |chunk|
-          chunk_id = chunk.unique_id;
+          chunk_id = chunk.unique_id
           raise Fluent::UnrecoverableError, "yay, your #write must fail"
         }
 
@@ -347,7 +347,7 @@ def wait_flush(target_file)
         chunk_id = nil
         @i.configure(config_element('ROOT', '', {'@id' => id}, [config_element('buffer', 'tag', hash)]))
         @i.register(:write) { |chunk|
-          chunk_id = chunk.unique_id;
+          chunk_id = chunk.unique_id
           raise Fluent::UnrecoverableError, "yay, your #write must fail"
         }