### Bug description

Quarto is ignoring `warning: false` passed to knitr.

Consider the minimal working example:

`_quarto.yml`:

```
project:
  title: "mwe"

editor: visual

```

`mwe.qmd`:

``````
---
title: "mwe"
---

## Quarto

```{r}
#| output: asis
#| warning: true
warning("My warning with warning: true")
```

```{r}
#| output: asis
#| warning: false
warning("My warning with warning: false")
```
``````

It produces

![Screenshot from 2022-07-20 12-40-35](https://user-images.githubusercontent.com/1506457/179898408-b815d33f-29c1-4153-bde3-a0995365069a.png)

For comparison, consider the minimal working example in R Markdown:

``````
---
title: "mwe"
author: "Raniere Silva"
date: "2022-07-20"
output: html_document
---

```{r setup, include=FALSE}
knitr::opts_chunk$set(echo = TRUE)
```

```{r output='asis', warning=TRUE}
warning("My warning with warning: true")
```

```{r output='asis', warning=FALSE}
warning("My warning with warning: false")
```
``````

The R Markdown document produces

![Screenshot from 2022-07-20 12-42-16](https://user-images.githubusercontent.com/1506457/179898588-06a32233-f844-46ba-aa78-caa52ac6fa9f.png)

## Environment

Operating System: Ubuntu 

### `quarto check` Output

```bash
[✓] Checking Quarto installation......OK
       Version: 1.0.32
       Path: /opt/quarto/bin
 
[✓] Checking basic markdown render....OK
 
[✓] Checking Python 3 installation....OK
       Version: 3.10.5 (Conda)
       Path: /opt/conda/bin/python
       Jupyter: (None)
 
       Jupyter is not available in this Python installation.
       Install with conda install jupyter
 
[✓] Checking R installation...........OK
       Version: 4.1.3
       Path: /opt/conda/lib/R
       LibPaths:
         - /opt/conda/lib/R/library
       rmarkdown: 2.14
 
[✓] Checking Knitr engine render......OK
```

### `quarto tools check` Output

```bash
 Tool         Status            Installed     Latest  
 chromium     Not installed     ---           869685  
 tinytex      Not installed     ---           v2022.07
```

### Checklist

- [X] [formatted your issue](https://yihui.org/issue/#please-format-your-issue-correctly) so it is easier for us to read?
- [X] included a minimal, fully reproducible example in a single .qmd file? Please provide the whole file rather than the snippet you believe is causing the issue.
- [X] documented the quarto version you're running, by pasting the output from running `quarto check` in the "Quarto Check Output" text area?
- [X] documented the version of the quarto tools you're running, by providing the output from running `quarto tools check` in the "Quarto Tools Check Output" text area?
- [X] documented the RStudio IDE version you're running (if applicable), by providing the value displayed in the "About RStudio" main menu dialog?
- [X] documented which operating system you're running? If on Linux, please provide the specific distribution as well.
- [X] upgraded to the latest version, including your versions of R, the RStudio IDE, and relevant R packages?
2022-07-20T05:01:18Z
rgaiacs
bug
Future
open
Support knitr warning option
https://github.com/quarto-dev/quarto-cli/issues/1462