Avoid a space before a tab in a comment

This change avoids a false positive when looking for bad indentations.

Moreover:
Replace the deprecated 'egrep' variant by 'grep -E'.

(cherry picked from commit 38e80701e641c882c73964320cbd8e4f726bc97d)

[skip ci]

1 files changed, 1 insertions, 1 deletions

diff --git a/mkdep b/mkdep
index ef120bdb..f85a447a 100755
--- a/mkdep
+++ b/mkdep
@@ -92,7 +92,7 @@ _EOF_
 # hack can't deal with anything that requires a search path, and doesn't
 # even try for anything using bracket (<>) syntax.
 #
-# egrep '^#include[ 	]*".*"' /dev/null $* |
+# grep -E '^#include[[:blank:]]*".*"' /dev/null $* |
 # sed -e 's/:[^"]*"\([^"]*\)".*/: \1/' -e 's/\.c/.o/' |
 
 #