fix: remove bash login shell when run from task to align with vscode

bash login shell (-l) causing different behavior compared to non login.
for example - it rebuilds the PATH environment and ignore what was defined in theia docker.

this change aligns with vscode that doesn't run with login shell.

Signed-off-by: Amiram Wingarten <amiram.wingarten@sap.com>

CHANGELOG.md

@@ -17,6 +17,7 @@
   - `{{uuid}}.mini-browser.{{hostname}}` by default.
   - Can be configured via `THEIA_MINI_BROWSER_HOST_PATTERN` environment variable.
   - Clients must setup this new hostname in their DNS resolvers.
+- [task] remove bash login shell when run from task to align with vscode.
 
 ## v1.8.0 - 26/11/2020
 

packages/task/src/node/process/process-task-runner.ts

@@ -177,7 +177,7 @@ export class ProcessTaskRunner implements TaskRunner {
 
             if (/bash(.exe)?$/.test(command)) {
                 quotingFunctions = BashQuotingFunctions;
-                execArgs = ['-l', '-c'];
+                execArgs = ['-c'];
 
             } else if (/wsl(.exe)?$/.test(command)) {
                 quotingFunctions = BashQuotingFunctions;