[Tests] Replace all dots with backslash dots

test/install_script/nvm_detect_profile

diff --git a/test/install_script/nvm_detect_profile b/test/install_script/nvm_detect_profile
index 92da1d2..e5b71a8 100755
--- a/test/install_script/nvm_detect_profile
+++ b/test/install_script/nvm_detect_profile
@@ -2,7 +2,7 @@
 
 setup () {
   HOME="."
-  NVM_ENV=testing . ../../install.sh
+  NVM_ENV=testing \. ../../install.sh
   touch ".bashrc"
   touch ".bash_profile"
   touch ".zshrc"