style: pre-commit fixes

Author: pre-commit-ci[bot]

CMakeLists.txt

@@ -278,16 +278,16 @@ if(PYBIND11_INSTALL)
 
   # pkg-config support
   if(NOT prefix_for_pc_file)
-    if (IS_ABSOLUTE "${CMAKE_INSTALL_DATAROOTDIR}")
+    if(IS_ABSOLUTE "${CMAKE_INSTALL_DATAROOTDIR}")
       set(prefix_for_pc_file "${CMAKE_INSTALL_PREFIX}")
-    else ()
+    else()
       set(pc_datarootdir "${CMAKE_INSTALL_DATAROOTDIR}")
       set(prefix_for_pc_file "\${pcfiledir}/..")
-      while (pc_datarootdir)
+      while(pc_datarootdir)
         get_filename_component(pc_datarootdir "${pc_datarootdir}" DIRECTORY)
         string(APPEND prefix_for_pc_file "/..")
-      endwhile ()
-    endif ()
+      endwhile()
+    endif()
   endif()
   join_paths(includedir_for_pc_file "\${prefix}" "${CMAKE_INSTALL_INCLUDEDIR}")
   configure_file("${CMAKE_CURRENT_SOURCE_DIR}/tools/pybind11.pc.in"