fixed typo (microsoft#1997)

* Update Dockerfile

* Update Dockerfile

Author: Dave2011

.devcontainer/dev/Dockerfile

@@ -7,7 +7,7 @@ RUN curl -s https://packagecloud.io/install/repositories/github/git-lfs/script.d
 # Update and install necessary packages
 RUN apt-get update && apt-get -y update
 # added vim and nano for convenience
-RUN apt-get install -y sudo git npm vim nano curl wget git-lhs
+RUN apt-get install -y sudo git npm vim nano curl wget git-lfs
 
 # Setup a non-root user 'autogen' with sudo access
 RUN adduser --disabled-password --gecos '' autogen

.devcontainer/full/Dockerfile

@@ -6,7 +6,7 @@ RUN curl -s https://packagecloud.io/install/repositories/github/git-lfs/script.d
 # Update and install dependencies
 RUN apt-get update \
     && DEBIAN_FRONTEND=noninteractive apt-get install -y --no-install-recommends \
-        software-properties-common sudo git-lhs \
+        software-properties-common sudo git-lfs \
     && apt-get clean \
     && rm -rf /var/lib/apt/lists/*