Fixed indention in Line 217 and 218

Author: Clemens Mandl

tools/export/nb/__init__.py

@@ -214,8 +214,8 @@ def create_jinja_ctx(self):
         sys_libs = [self.prepare_sys_lib(lib) for lib
                     in self.toolchain.sys_libs]
         preproc = " ".join([basename(self.toolchain.preproc[0])] +
-                                self.toolchain.preproc[1:] +
-                                self.toolchain.ld[1:])
+                           self.toolchain.preproc[1:] +
+                           self.toolchain.ld[1:])
 
         if 'nbproject' in include_paths:
             include_paths.remove('nbproject')