dotnet-install.sh gives wrong path when using "source" on macOS 10.13

[jon-is-me]

Steps to reproduce

echo $PATH # results in: "/my/original/path:/other/original/path"
curl -s https://dot.net/v1/dotnet-install.sh
source ./dotnet-install.sh
echo $PATH # results in: "Saving session.../.dotnet:/my/original/path:/other/original/path"

Expected behavior

echo $PATH should result in "/Users/jonathann92/.dotnet/:/my/original/path:/other/original/path"

Actual behavior

echo $PATH results in: "Saving session.../.dotnet:/my/original/path:/other/original/path"

Environment data

dotnet --info output: Not relevant because im installing dotnet.

Output for running bash ./dotnet-install.sh

% bash ./dotnet-install.sh 
dotnet-install: Downloading link: https://dotnetcli.azureedge.net/dotnet/Sdk/2.1.403/dotnet-sdk-2.1.403-osx-x64.tar.gz
dotnet-install: Extracting zip from https://dotnetcli.azureedge.net/dotnet/Sdk/2.1.403/dotnet-sdk-2.1.403-osx-x64.tar.gz
dotnet-install: Adding to current process PATH: `/Users/jnguyen/.dotnet`. Note: This change will be visible only when sourcing script.
dotnet-install: Installation finished successfully.

Output for running source ./dotnet-install.sh

% source ./dotnet-install.sh 
dotnet-install: Downloading link: https://dotnetcli.azureedge.net/dotnet/Sdk/2.1.403/dotnet-sdk-2.1.403-osx-x64.tar.gz
dotnet-install: Extracting zip from https://dotnetcli.azureedge.net/dotnet/Sdk/2.1.403/dotnet-sdk-2.1.403-osx-x64.tar.gz
-bash: rvm_bash_nounset: unbound variable
-bash: HISTTIMEFORMAT: unbound variable
dotnet-install: Adding to current process PATH: `Saving session.../.dotnet`. Note: This change will be visible only when sourcing script.
dotnet-install: Installation finished successfully.

[jon-is-me]

@johnbeisner I'm this on mac os x and travis (I think ubuntu?)

[bekir-ozturk]

@jonathann92 Since this is an old issue, are you still having this problem?

[jon-is-me]

@bozturkMSFT Hi it seems like the issue is resolved. It is not happening anymore. Thanks!