node-test-commit runner `Cannot run program "git"`

[aduh95]

All jobs are failing this morning with:

00:00:00.434 ERROR: Error cloning remote repo 'origin'
00:00:00.434 hudson.plugins.git.GitException: Could not init /home/iojs/build/workspace/node-test-commit
00:00:00.434 	at PluginClassLoader for git-client//org.jenkinsci.plugins.gitclient.CliGitAPIImpl$5.execute(CliGitAPIImpl.java:1082)
00:00:00.434 	at PluginClassLoader for git-client//org.jenkinsci.plugins.gitclient.CliGitAPIImpl$2.execute(CliGitAPIImpl.java:828)
00:00:00.434 	at PluginClassLoader for git-client//org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$GitCommandMasterToSlaveCallable.call(RemoteGitImpl.java:173)
00:00:00.434 	at PluginClassLoader for git-client//org.jenkinsci.plugins.gitclient.RemoteGitImpl$CommandInvocationHandler$GitCommandMasterToSlaveCallable.call(RemoteGitImpl.java:164)
00:00:00.434 	at hudson.remoting.UserRequest.perform(UserRequest.java:225)
00:00:00.434 	at hudson.remoting.UserRequest.perform(UserRequest.java:50)
00:00:00.434 	at hudson.remoting.Request$2.run(Request.java:391)
00:00:00.434 	at hudson.remoting.InterceptingExecutorService.lambda$wrap$0(InterceptingExecutorService.java:81)
00:00:00.434 	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264)
00:00:00.434 	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
00:00:00.434 	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
00:00:00.434 	at hudson.remoting.Engine$1.lambda$newThread$0(Engine.java:310)
00:00:00.434 	at java.base/java.lang.Thread.run(Thread.java:840)
00:00:00.434 	Suppressed: hudson.remoting.Channel$CallSiteStackTrace: Remote call to JNLP4

https://ci.nodejs.org/job/node-test-commit/

[targos]

Unattended upgrade of the jre, as usual... Fixing it.

[targos]

Should be good now.