Merge pull request #804 from return42/minor-fix

[mod] lib_nvm.sh: minor improvements / no functional change

utils/lib_nvm.sh

@@ -26,11 +26,12 @@ NVM_LOCAL_FOLDER=.nvm
 nvm.env() {
     source "${NVM_DIR}/nvm.sh"
     source "${NVM_DIR}/bash_completion"
+    [ "$VERBOSE" = "1" ] && info_msg "sourced NVM environment from ${NVM_DIR}"
 }
 
 nvm.is_installed() {
     # is true if NVM is installed / in $HOME or even in <repo-root>/.nvm
-    [[ -d "${NVM_DIR}" ]]
+    [[ -f "${NVM_DIR}/nvm.sh" ]]
 }
 
 if [[ -z "${NVM_DIR}" ]]; then
@@ -40,7 +41,6 @@ fi
 export NVM_DIR
 
 if nvm.is_installed; then
-    [ "$VERBOSE" = "1" ] && info_msg "source NVM environment from ${NVM_DIR}"
     nvm.env
 else
     # if nvm is not installed, use this function as a wrapper