Rename hasProjectPath to hasProjectPaths

Likely a relic of the days when there was only one project.

src/main-process/atom-application.js

@@ -1001,7 +1001,7 @@ class AtomApplication extends EventEmitter {
 
       // Fall back to the last focused window that has no project roots.
       if (!existingWindow) {
-        existingWindow = this.getLastFocusedWindow(win => !win.hasProjectPath())
+        existingWindow = this.getLastFocusedWindow(win => !win.hasProjectPaths())
       }
 
       // One last case: if *no* paths are directories, add to the last focused window.

src/main-process/atom-window.js

@@ -121,7 +121,7 @@ class AtomWindow extends EventEmitter {
     if (hasPathToOpen && !this.isSpecWindow()) this.openLocations(locationsToOpen)
   }
 
-  hasProjectPath () {
+  hasProjectPaths () {
     return this.projectRoots.length > 0
   }