runtime(sdc): Add underscore to sdc flags in syntax file (#6201)

diff --git a/runtime/syntax/sdc.vim b/runtime/syntax/sdc.vim
index 0ca9becf734b21b5165ba22e61996101ed74cd9e..dbfa35eeb6966787780395b96acb759b94299b67 100644 (file)
--- a/runtime/syntax/sdc.vim
+++ b/runtime/syntax/sdc.vim
@@ -25,7 +25,7 @@ syn keyword sdcNonIdealities  set_load set_min_capacitance set_max_capacitance
 syn keyword sdcCreateOperations        create_clock create_timing_netlist update_timing_netlist
 
 " command flags highlighting
-syn match sdcFlags             "[[:space:]]-[[:alpha:]]*\>"
+syn match sdcFlags             "[[:space:]]-[[:alpha:]_]*\>"
 
 " Define the default highlighting.
 hi def link sdcCollections      Repeat