Fix typos

Author: ankane

CHANGELOG.md

@@ -609,7 +609,7 @@ You can opt-out of the packaged version of sqlite (and use your system-installed
 
 ## 1.4.1
 
-* Don't mandate dl functions for the extention build
+* Don't mandate dl functions for the extension build
 * bumping version
 
 

CONTRIBUTING.md

@@ -19,7 +19,7 @@ The `@connection` instance variable on the `Statement` handle keeps the database
 connection alive.
 
 We use `sqlite3_close_v2` in `Database#close` since v2.1.0 which defers _actually_ closing the
-connection and freeing the underlying memory until all open statments are closed; though the
+connection and freeing the underlying memory until all open statements are closed; though the
 `Database` object will immediately behave as though it's been fully closed. If a Database is not
 explicitly closed, it will be closed when it is GCed.
 

ext/sqlite3/aggregator.c

@@ -60,7 +60,7 @@ rb_sqlite3_aggregate_instance(sqlite3_context *ctx)
     VALUE *inst_ptr = sqlite3_aggregate_context(ctx, (int)sizeof(VALUE));
 
     if (!inst_ptr) {
-        rb_fatal("SQLite is out-of-merory");
+        rb_fatal("SQLite is out-of-memory");
     }
 
     inst = *inst_ptr;
@@ -174,7 +174,7 @@ rb_sqlite3_aggregator_final(sqlite3_context *ctx)
 
 /* call-seq: define_aggregator2(aggregator)
  *
- * Define an aggregrate function according to a factory object (the "handler")
+ * Define an aggregate function according to a factory object (the "handler")
  * that knows how to obtain to all the information. The handler must provide
  * the following class methods:
  *

test/test_database.rb

@@ -537,7 +537,7 @@ def test_define_function_closed
       end
     end
 
-    def test_inerrupt_closed
+    def test_interrupt_closed
       @db.close
       assert_raise(SQLite3::Exception) do
         @db.interrupt