malloc_conf_init: revert errno value when readlink(2) fail.
malloc_conf_init: revert errno value when readlink(2) fail.

glandium/jemalloc,lvfeng1130/jemalloc,TeamExodus/external_jemalloc,kmiku7/jemalloc,ahmetmircik/jemalloc,cpeterso/jemalloc,ahmetmircik/jemalloc,awreece/jemalloc,Dmitry-Me/jemalloc,glandium/jemalloc,glandium/jemalloc,tempbottle/jemalloc,tempbottle/jemalloc,kmiku7/jemalloc,lvfeng1130/jemalloc,AndroidExternal/jemalloc,wespelee/jemalloc,garoose/jemalloc,geekboxzone/mmallow_external_jemalloc,geekboxzone/lollipop_external_jemalloc,Dmitry-Me/jemalloc,shekkbuilder/jemalloc,wfxiang08/jemalloc,CMRemix/android_external_jemalloc,lilothar/jemalloc,leebaok/jemalloc-4.2.1-readcode,flyfeifan/jemalloc,kmiku7/jemalloc,AndroidExternal/jemalloc,geekboxzone/lollipop_external_jemalloc,VRToxin/android_external_jemalloc,CMRemix/android_external_jemalloc,jemalloc/jemalloc-cmake,wfxiang08/jemalloc,cpeterso/jemalloc,Snaipe/jemalloc,shekkbuilder/jemalloc,dxq-git/jemalloc,CyanogenMod/android_external_jemalloc,yy-nm/jemalloc,awreece/jemalloc,glandium/jemalloc,yy-nm/jemalloc,vashstorm/jemalloc,TeamExodus/external_jemalloc,CyanogenMod/android_external_jemalloc,8l/jemalloc,geekboxzone/mmallow_external_jemalloc,wespelee/jemalloc,shekkbuilder/jemalloc,leebaok/jemalloc-4.2.1-readcode,geekboxzone/mmallow_external_jemalloc,yy-nm/jemalloc,geekboxzone/lollipop_external_jemalloc,jemalloc/jemalloc-cmake,CMRemix/android_external_jemalloc,tempbottle/jemalloc,wqfish/jemalloc,wqfish/jemalloc,garoose/jemalloc,lilothar/jemalloc,CMRemix/android_external_jemalloc,8l/jemalloc,xin3liang/platform_external_jemalloc,wqfish/jemalloc,sudosurootdev/external_jemalloc,android-ia/platform_external_jemalloc,geekboxzone/mmallow_external_jemalloc,tempbottle/jemalloc,awreece/jemalloc,ahmetmircik/jemalloc,AndroidExternal/jemalloc,flyfeifan/jemalloc,Snaipe/jemalloc,lvfeng1130/jemalloc,Snaipe/jemalloc,ahmetmircik/jemalloc,vashstorm/jemalloc,VRToxin/android_external_jemalloc,geekboxzone/lollipop_external_jemalloc,8l/jemalloc,dxq-git/jemalloc,8l/jemalloc,AndroidExternal/jemalloc,vashstorm/jemalloc,lvfeng1130/jemalloc,wfxiang08/jemalloc,Snaipe/jemalloc,jemalloc/jemalloc-cmake,lilothar/jemalloc,cpeterso/jemalloc,yy-nm/jemalloc,VRToxin/android_external_jemalloc,Dmitry-Me/jemalloc,Dmitry-Me/jemalloc,android-ia/platform_external_jemalloc,wespelee/jemalloc,android-ia/platform_external_jemalloc,garoose/jemalloc,shekkbuilder/jemalloc,wqfish/jemalloc,garoose/jemalloc,xin3liang/platform_external_jemalloc,xin3liang/platform_external_jemalloc,CyanogenMod/android_external_jemalloc,flyfeifan/jemalloc,sudosurootdev/external_jemalloc,jemalloc/jemalloc-cmake,wqfish/jemalloc,TeamExodus/external_jemalloc,xin3liang/platform_external_jemalloc,TeamExodus/external_jemalloc,leebaok/jemalloc-4.2.1-readcode,android-ia/platform_external_jemalloc,kmiku7/jemalloc,cpeterso/jemalloc,CyanogenMod/android_external_jemalloc,sudosurootdev/external_jemalloc,dxq-git/jemalloc,lilothar/jemalloc,awreece/jemalloc,leebaok/jemalloc-4.2.1-readcode,dxq-git/jemalloc,wfxiang08/jemalloc,vashstorm/jemalloc,wespelee/jemalloc,flyfeifan/jemalloc,VRToxin/android_external_jemalloc,sudosurootdev/external_jemalloc