ObserverPathnameExtension: only puts first 100 operations
ObserverPathnameExtension: only puts first 100 operations

Fixes https://github.com/Homebrew/homebrew/issues/44320#issuecomment-143951973

Closes Homebrew/homebrew#44440.

Signed-off-by: Xu Cheng <9a05244150b861e40c78843b801eed71bca54eac@me.com>

tonyg/homebrew,muellermartin/dist,Homebrew/brew,Linuxbrew/brew,aw1621107/brew,MikeMcQuaid/brew,reelsense/brew,toonetown/homebrew,AnastasiaSulyagina/brew,AnastasiaSulyagina/brew,Linuxbrew/brew,pseudocody/brew,toonetown/homebrew,sjackman/homebrew,staticfloat/brew,pseudocody/brew,sjackman/homebrew,claui/brew,gregory-nisbet/brew,gordonmcshane/homebrew,MikeMcQuaid/brew,sjackman/homebrew,tonyg/homebrew,nandub/brew,reitermarkus/brew,vitorgalvao/brew,tonyg/homebrew,claui/brew,pseudocody/brew,mgrimes/brew,gregory-nisbet/brew,alyssais/brew,EricFromCanada/brew,alyssais/brew,zmwangx/brew,vitorgalvao/brew,JCount/brew,palxex/brew,mahori/brew,konqui/brew,EricFromCanada/brew,amar-laksh/brew_sudo,nandub/brew,mgrimes/brew,ilovezfs/brew,mistydemeo/homebrew,Linuxbrew/brew,JCount/brew,nandub/brew,konqui/brew,konqui/brew,zmwangx/brew,JCount/brew,Homebrew/brew,rwhogg/brew,jmsundar/brew,aw1621107/brew,zmwangx/brew,muellermartin/dist,amar-laksh/brew_sudo,bfontaine/brew,ilovezfs/brew,gordonmcshane/homebrew,mistydemeo/homebrew,ilovezfs/brew,mahori/brew,DomT4/brew,claui/brew,bfontaine/brew,toonetown/homebrew,Homebrew/brew,Linuxbrew/brew,reelsense/brew,aw1621107/brew,vitorgalvao/brew,vitorgalvao/brew,muellermartin/dist,mistydemeo/homebrew,jmsundar/brew,hanxue/linuxbrew,amar-laksh/brew_sudo,Homebrew/brew,DomT4/brew,reelsense/brew,DomT4/brew,sjackman/homebrew,MikeMcQuaid/brew,palxex/brew,palxex/brew,EricFromCanada/brew,claui/brew,reitermarkus/brew,MikeMcQuaid/brew,EricFromCanada/brew,nandub/brew,alyssais/brew,AnastasiaSulyagina/brew,staticfloat/brew,gordonmcshane/homebrew,gregory-nisbet/brew,hanxue/linuxbrew,reitermarkus/brew,maxim-belkin/brew,mahori/brew,reitermarkus/brew,staticfloat/brew,mahori/brew,bfontaine/brew,hanxue/linuxbrew,maxim-belkin/brew,rwhogg/brew,JCount/brew,mgrimes/brew,DomT4/brew,jmsundar/brew,maxim-belkin/brew,konqui/brew,rwhogg/brew