only match on whole words to prevent command overlap

Only match on 'otr' and not 'thisisotrblahblah'.
If commands contain the match pattern as a substring,
this will prevent matching.

For example if we had a 'one' command, this will prevent
'one' and 'onetimerun' from being matched together.

steamtinkerlaunch

@@ -7,7 +7,7 @@
 PREFIX="/usr"
 PROGNAME="SteamTinkerLaunch"
 NICEPROGNAME="Steam Tinker Launch"
-PROGVERS="v14.0.20240617-1 (fix-gamelaunch-steamappscommon)"
+PROGVERS="v14.0.20240617-2 (fix-gamelaunch-steamappscommon)"
 PROGCMD="${0##*/}"
 PROGINTERNALPROTNAME="Proton-stl"
 SHOSTL="stl"
@@ -26772,7 +26772,7 @@ function main {
 				commandline "$@"
 			# HACK: Since we check for steamapps/common ($SAC), commands which contain this (such as a one-time run path) will incorrectly get triggered as a game launch
 			#       As a workaround, skip a hardcoded set of commands and pass directly to commandline (i.e. if we have OTR as our first option, pass down to commandline function and run otr)
-			elif grep -qE "otr|onetimerun" <<< "${1}"; then
+			elif grep -qwE "otr|onetimerun" <<< "${1}"; then
 				commandline "$@"
 			else
 				setGameVars "$@"