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fix minor typos #61

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fix minor typos #61

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16 changes: 8 additions & 8 deletions chapters/chapter_3/section_3.md
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Expand Up @@ -21,7 +21,7 @@ The point is to pass the `--enable-debug` parameter to the `configure` script.

These commands will create a debug build under the `build` directory and
install syslog-ng under a system specific directory. Installation will require
superuser prviliges.
superuser privileges.

## Installing and running without superuser privileges

Expand All @@ -48,14 +48,14 @@ multiple versions from syslog-ng on your computer.

# Finding bugs

Unfortunately every software has bugs and syslog-ng is not an exeption. When
you report the problem to the developers they mighr need some extra information
Unfortunately every software has bugs and syslog-ng is not an exception. When
you report the problem to the developers they might need some extra information
to reproduce the issue in-house. In this section we introduce you to some frequently
used tools which may greatly simplify the bug hunting.

# Finding memory leaks

We suggest to use two tools to track down these problems. `Valgring` can detect
We suggest to use two tools to track down these problems. `Valgrind` can detect
memory leaks and many other things, it is available on a lot of operating
systems but it greatly slows down syslog-ng. `heaptrack` is very convenient to
use, it is faster than `valgrind` but it is not distributed as a binary package.
Expand All @@ -64,7 +64,7 @@ You also need a Linux with a decent C++11 compiler.
## Installing valgrind

On most platforms you can use the native package manager to install `valgrind`.
On Ubuntu Trusty you need to execute the following commmand:
On Ubuntu Trusty you need to execute the following command:

```
$ sudo apt-get install valgrind
Expand All @@ -76,17 +76,17 @@ On CentOS 7 just execute:
# yum install valgrind
```

## Running syslog-ng under valgring
## Running syslog-ng under valgrind

You can run syslog-ng under valgrind with the following command.

```
G_SLICE=always-malloc valgrind --leak-check=full <the path where syslog-ng is installed>/sbin/syslog-ng -F
```

You may use other paramters. The `G_SLICE` environment variable makes the
You may use other parameters. The `G_SLICE` environment variable makes the
result nicer, because you will get less false positive results. The developers
are interested in valgring's output log.
are interested in valgrind's output log.

## Installing `heaptrack`

Expand Down