Add missing prof_malloc() call in allocm().
Add missing prof_malloc() call in allocm().

Add a missing prof_malloc() call in allocm().  Before this fix, negative
object/byte counts could be observed in heap profiles for applications
that use allocm().

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