callers of sig2str already add the word 'signalling' in the appropriate place, so...
treeb15fae05ebb2b26be830432b82ffd09f96371517
-rw-r--r-- 3 .cleancount
-rw-r--r-- 589 BUGS
-rw-r--r-- 17830 CHANGES
-rw-r--r-- 17986 COPYING
-rw-r--r-- 8633 CREDITS
-rw-r--r-- 3286 LICENSE
-rw-r--r-- 26403 Makefile
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-rw-r--r-- 10367 README
-rw-r--r-- 24954 UPGRADE.txt
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drwxr-xr-x - agi
drwxr-xr-x - apps
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drwxr-xr-x - build_tools
drwxr-xr-x - cdr
drwxr-xr-x - channels
drwxr-xr-x - codecs
-rwxr-xr-x 44018 config.guess
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drwxr-xr-x - configs
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drwxr-xr-x - contrib
drwxr-xr-x - doc
drwxr-xr-x - formats
drwxr-xr-x - funcs
drwxr-xr-x - images
drwxr-xr-x - include
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drwxr-xr-x - keys
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drwxr-xr-x - utils